for men: the catchment area around the base of the penis usefull to stop spunk dripping on your balls after a good hard wank.
for women: the only pratical use is to punish their boyfriends but not shaving then demanding a make up munch.
man lays on his back expressing himself the way he knows best as he is so distracted he forgets to reach for a tissue eee by gum what a mess but he has to stand to reach his wiper low and behold the sex wee gets trapped in his spiders web and saves the carpet. PUBES!!