I think I laughed a little imagining all the situations you describe, thinking about it, I have never used that word before, besides sex is a taboo subject even in some parts of the world, if we complicate them with this kind of words, I think nobody would talk about it, maybe we would use signs! In my country there are many words that define that action but I don't think I would say them yet! so I'm gonna wait for options on every comment.