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'''Cleavage''' is the cleft created by the partial exposure of a woman's [[breasts]], especially when exposed by low-cut clothing. The neckline of a garment that exposes cleavage is known as ''décolletage'' (or ''décolleté'' in current French). ''Intermammary sulcus'' or ''intermammary cleft'' are the terms adopted by the International Federation of Associations of Anatomists for the area of cleavage between the breasts not including the breasts. Exposure of the underside of the breast, such as below an extremely short crop top, is known as ''neathage''<ref>[http://www.urbandictionary.com/define.php?term=neathage Urban Dictionary: Neathage]</ref>, ''Australian cleavage''<ref>[http://www.urbandictionary.com/define.php?term=Australian+cleavage Urban Dictionary: Australian cleavage]</ref>, ''reverse cleavage''<ref>[http://www.urbandictionary.com/define.php?term=reverse+cleavage Urban Dictionary: Reverse cleavage]</ref> or ''underboob''<ref>[http://www.urbandictionary.com/define.php?term=underboob Urban Dictionary: Underboob]</ref>. When the lateral aspects of the breasts are uncovered, it is known as 'side cleavage'.
'''Cleavage''' is the cleft created by the partial exposure of a woman's [[breasts]], especially when exposed by low-cut clothing. The neckline of a garment that exposes cleavage is known as ''décolletage'' (or ''décolleté'' in current French). ''Intermammary sulcus'' or ''intermammary cleft'' are the terms adopted by the International Federation of Associations of Anatomists for the area of cleavage between the breasts not including the breasts. Exposure of the underside of the breast, such as below an extremely short crop top, is known as ''neathage''<ref>[http://www.urbandictionary.com/define.php?term=neathage Urban Dictionary: Neathage]</ref>, ''reverse cleavage''<ref>[http://www.urbandictionary.com/define.php?term=reverse+cleavage Urban Dictionary: Reverse cleavage]</ref> or ''underboob''<ref>[http://www.urbandictionary.com/define.php?term=underboob Urban Dictionary: Underboob]</ref>, or ''Australian cleavage''<ref>[http://www.urbandictionary.com/define.php?term=Australian+cleavage Urban Dictionary: Australian cleavage]</ref> (because the down under side of the breast is exposed). When the lateral aspects of the breasts are uncovered, it is known as ''side cleavage'' or ''sideboob''.


==Theories of cleavage==
==Theories of cleavage==
Evolutionary psychologists theorize that humans' permanently enlarged breasts, in contrast to other primates' breasts that only enlarge during ovulation, allowed females to "solicit male attention and investment even when they are not really fertile."<ref>Charles B. Crawford & Dennis Krebs (eds.), [http://books.google.com/books?id=B96QZyBluRgC&pg=PA113&lpg=PA113&dq=%22flat+chested+ape+to+modern+buxom+woman%22&source=web&ots=RaQ7YIBwJ2&sig=cDIuiyc56Xi7rd8ZbXsU9wuraL4#PPA113,M1 "How Mate Choice Shaped Human Nature"], ''Handbook of Evolutionary Psychology: Ideas, Issues, and Applications'', Lawrence Erlbaum Associates (1998).</ref>  Popular [[British]] zoologist and ethologist Desmond Morris theorizes that cleavage is a sexual signal that imitates the image of the cleft between the buttocks<ref name="theory">http://sil.mcmaster.ca/Archive/life/041014lifefeature.html</ref>, which according to ''The Naked Ape'' is also unique to humans, other apes as a rule having much flatter buttocks.  However it is worth noting that, as far as is known, humans have never had breasts that would have much cleavage even when they are unclothed, so breast cleavage is a phenomenon of modern, clothed humans.
Some evolutionary psychologists theorize that humans' permanently enlarged breasts, in contrast to other primates' breasts that only enlarge during ovulation, allowed females to "solicit male attention and investment even when they are not really fertile."<ref>Charles B. Crawford & Dennis Krebs (eds.), [http://books.google.com/books?id=B96QZyBluRgC&pg=PA113&lpg=PA113&dq=%22flat+chested+ape+to+modern+buxom+woman%22&source=web&ots=RaQ7YIBwJ2&sig=cDIuiyc56Xi7rd8ZbXsU9wuraL4#PPA113,M1 "How Mate Choice Shaped Human Nature"], ''Handbook of Evolutionary Psychology: Ideas, Issues, and Applications'', Lawrence Erlbaum Associates (1998).</ref>  Popular [[British]] zoologist and ethologist Desmond Morris theorizes that cleavage is a sexual signal that imitates the image of the cleft between the buttocks<ref name="theory">http://sil.mcmaster.ca/Archive/life/041014lifefeature.html</ref>, which according to ''The Naked Ape'' is also unique to humans, other apes as a rule having much flatter buttocks.  However it is worth noting that, as far as is known, humans have never had breasts that would have much cleavage even when they are unclothed, so breast cleavage is a phenomenon of modern, clothed humans.


== Australian cleavage ==
== Cleavage variant illustrations==
'''Australian cleavage''' is a term used to describe partial exposure of the "down under" side of the boob, such as below an extremely short crop top or when hidden by long hair ("hair bra").  Like conventional cleavage, the nipple is kept concealed with Australian cleavage. 
 
This form of breast exposure is also referred to as '''neathage'''.[http://www.vh1.com/news/articles/1457258/08292002/aguilera_christina.jhtml]  This term  may also be used to describe most of the boob, including the nipple, where the underside of the tit is emphasized.
[[Image:Haley Crush Australian cleavage.jpg|left|thumb|999x190px|[[Haley Crush]]'s Australian cleavage.]]
[[Image:Haley Crush Australian cleavage.jpg|left|thumb|999x190px|[[Haley Crush]]'s Australian cleavage.]]
[[Image:Tiffany_taylor_neathage.jpg|left|thumb|999x190px|[[Tiffany Taylor]]'s Australian Cleavage.]]
[[Image:Tiffany_taylor_neathage.jpg|left|thumb|999x190px|[[Tiffany Taylor]]'s Australian cleavage hair bra.]]
[[Image:Lucy_pinder_sideboob.jpg|left|thumb|999x190px|[[Lucy Pinder]]'s Sideboob.]]
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Revision as of 09:19, 19 June 2012

Cleavage is the cleft created by the partial exposure of a woman's breasts, especially when exposed by low-cut clothing. The neckline of a garment that exposes cleavage is known as décolletage (or décolleté in current French). Intermammary sulcus or intermammary cleft are the terms adopted by the International Federation of Associations of Anatomists for the area of cleavage between the breasts not including the breasts. Exposure of the underside of the breast, such as below an extremely short crop top, is known as neathage[1], reverse cleavage[2] or underboob[3], or Australian cleavage[4] (because the down under side of the breast is exposed). When the lateral aspects of the breasts are uncovered, it is known as side cleavage or sideboob.

Theories of cleavage

Some evolutionary psychologists theorize that humans' permanently enlarged breasts, in contrast to other primates' breasts that only enlarge during ovulation, allowed females to "solicit male attention and investment even when they are not really fertile."[5] Popular British zoologist and ethologist Desmond Morris theorizes that cleavage is a sexual signal that imitates the image of the cleft between the buttocks[6], which according to The Naked Ape is also unique to humans, other apes as a rule having much flatter buttocks. However it is worth noting that, as far as is known, humans have never had breasts that would have much cleavage even when they are unclothed, so breast cleavage is a phenomenon of modern, clothed humans.

Cleavage variant illustrations

Haley Crush's Australian cleavage.
Tiffany Taylor's Australian cleavage hair bra.
Lucy Pinder's Sideboob.

See also

External links



The text in this article is based on the Wikipedia article "Cleavage (breasts)" used under the terms of the GNU Free Documentation License or the Creative Commons CC-BY-SA license. See Boobpedia's copyright notice.


References

  1. Urban Dictionary: Neathage
  2. Urban Dictionary: Reverse cleavage
  3. Urban Dictionary: Underboob
  4. Urban Dictionary: Australian cleavage
  5. Charles B. Crawford & Dennis Krebs (eds.), "How Mate Choice Shaped Human Nature", Handbook of Evolutionary Psychology: Ideas, Issues, and Applications, Lawrence Erlbaum Associates (1998).
  6. http://sil.mcmaster.ca/Archive/life/041014lifefeature.html