It's the suffocation gesture to show the buttocks. The origin is in the Greek Kalipigia Aphrodite, an image of the goddess who lifts her robe (peplo) to show off her buttocks (beautiful, because she is Aphrodite) looking back to confirm the reaction of admirers; by extension is any work of art where there is a woman exposing her buttocks for aesthetic purposes. It comes from Ancient Greek 954; 945; 955; 955; 953; 960; 965; 947; 959; 962; ( kallípygos "of beautiful buttocks") and their objective today may be different from that of the original gesture that was only of aesthetic contemplation, since in other cultures "show the ass" is a lack of respect to the viewer; or also an irony with a sexual side, as in someone who feels ripped off and ruined by another and "offers him the anus to finish disgrace him". See anasyrma .