Top Definition
during the act of sex when a girl cums in large amounts all over you like a waterfall
ex: Jake: Hey dude, did you have fun with Jaime last night.
Nate: Hell yeah dude! She waterfalled
Jake: Sweet man! I wish my girl would have waterfalled.
#cum #sex #pussy #fuck #vagina
by foxdirtbikeracer4lyfe February 27, 2011
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