Performed either during foreplay or sex, Titillatio is when you're titty fucking the woman in question and, assuming her boobs are big enough, she also performs fellatio on you while your penis is between her breasts. A very good time-saving tool for quickies.
Hey baby, i know we're having sex and all but I have to be back at work in ten minutes. Your boobs are pretty big. While you're down there why don't you do a titillatio? That way we can kill two birds with one stone.
When you have to pee in a movie but don’t want to miss anything, and must do the following mental equation: will the amount I have to pee cause enough discomfort to diminish my attention capacity for the remainder of the movie to an extent which is greater than the amount of the movie I would miss by making a mad dash to the restroom.
I saw Satantango last night, wonderful film but by the 5th hour I had to start doing pee calculus.