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1.
A person (mainly a boy) who is usually seen chatting up girls (or boys) at parties. They may have numerous girls (or boys) around him/her. The term comes from the term "pull" meaning to attract someone to a point where they start to have casual sex.
Guy 1: "Did you see Ryan with those birds?"
Guy 2: "Yeah, he's an A-class pulling machine!"
by donkin' D December 21, 2010