Top Definition
(sex act) At the consummation of fallatio, the person engaging in the act of fallatio has the man ejaculate into his/her mouth and allows the semen to fall from his/her mouth down the penis, making the appearance of a waterfall down the shaft.
"I was giving my man head and then we did a beef waterfall."
by in10ionaltort September 15, 2009
5 Words related to beef waterfall

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