3. Stifler's Salty Beer (American Pie)
Stifler yet again and it's two bodily substances for the price of one in this scene. After his friend Kevin has received some oral pleasures from his girlfriend Vicky, he 'finishes' in a cup of what is left of his beer and the two of them vacate the bedroom they were in. Stifler soon brings a girl in to the same bedroom and, realising nothing is going to happen between them, he reaches for the beer to take a drink. The beer, of course, tastes a little funny and when Stifler looks at it and sees what's floating around inside it, he vomits all over the girl.