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Camel toe, or cameltoe, is slang for the outline of the labia majora (the outer lips of the vulva) in tightly fitting clothes.[1][2][3] Owing to a combination of anatomical factors and the fabric tension in the crotch area, the outer labia and mons pubis may, together, display a shape resembling the forefoot of a camel. Camel toe commonly occurs as a result of wearing clothing with crotch-area vertical tension, such as Spandex activewear or athleisure bottom wear, hotpants or swimwear.[4]
In the 1930s, following the development of Lastex rubberized yarns for swimwear, the resulting exposure of the pubic-area outline resulted in manufacturers adding a "modesty panel" to women's swimsuits to conceal the camel toe; this persisted through the 1950s.[5]
In the early 21st century, the display of camel toe in public or in the media has caused controversy on a number of occasions.[6][7][8]
... let's just say the words 'crotch outline' and let that suffice.
Cameltoe is slang for a fashion faux pas caused by women wearing snug pants; the term suggests a visual analogy.