Top Definition
while fooling around with your g/f and you tell them you are about to cum. they think they are going to see a little cum - instead your penis simply explodes and erupts like a volcano, covering your partner in thick streams of cum... "Surprise"!!
Maria was rubbing my penis over her breasts. When I told her I was about to cum - she wasn't ready for the 'cum surprise, she got
by Blast-a-choo January 23, 2008

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