 The penis gourds of tribal New Guinea, and cache-sexes of some other tribal cultures, are often perceived by Westerners as self-evidently obvious forms of sexual display, but described by their wearers as a practice providing privacy.The Brazilian Portuguese "tapa-sexo" is often used in samba school parades, where performers may parade their decorated but unclothed bodies, exposing the buttocks and groin.The regulations in these parades generally prohibit people being completely naked.