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1 definition by Philjo_

A lighthouse is when you're lying on your back making sweet love to a black chick and you start to rotate her on that huge shaft of yours with her eyes closed - every time she makes a full revolution on that throbbing thing of yours she opens her eyes and mouth shining the way to ecstacy.
person 1: yo daawwwgg how was dat shortie last night????

person 2: mmaaaannn i lighthouse'd the shit out of dat...DDDAAAMNNNN
by Philjo_ October 04, 2012