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To do homosexual sex acts
[1970s+ College students; probably a backward version of British poof, ''male homosexual, effeminate male,'' fr early 1900s Australian; perhaps fr the exclamation poof or pooh, regarded as effeminate]
OBJ2 plus object-orientation. "Extensions and Foundations for Object-Oriented Programming", J. Goguen et al, in Research Directions in Object-Oriented Programming, B. Shriver et al eds, MIT Press 1987.