Bunkake is a Japanese custom where a naked woman is strapped to the ground and five or more men masturbate on her. She must then drink every last drop of cum sprayed on her face or get whipped and burned after she is gangraped (Bunkake literally translates to SPLASH! in Japanese)
Japanese guy 1: anata no imooto wa doko desu ka
Japanese guy 2: nemasu.
Japanese guy 1: bunkake ji?
Japanese guy 2: Hai, baka! Bunkakemashou!
"where's your little sister?"
"Yeah, dumbass, let's bunkake!"