Top definition
1. Exploding Penis; also known as Enormous Exploding Orgasm (EEO) 2. The act of cumming while yelling loudly.
EXPEN, now in three different strengths....99 cent Super Soaker, Fire Hose, and Old Faithful. 2. I had such a big EXPEN last night, someone called the cops!
by Travis F, and Kirk R February 27, 2008
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