1 definition by I-Maniac

A guy/girl, especialy friend or family who intentionately or not stops you from getting laid...it can be done by phone, visiting, etc.
I was about to lose my virginity, when a Maniac friend of mine called to ask if i was watching T.V. Because of that cockblocker I missed my chance...
by I-Maniac February 8, 2007
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