Top definition
Upon being approached by a guy with a group of females,it is the act of you and your buddies stealing the group of girls from the unsuspecting guy.
Jerry: Hey tom what did u do last night?
Tom: Aw you would never believe, I went out to a club with samantha and her friends and a group of guys poonjacked me.
by poonjacker707 July 10, 2008
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