when you get a girls pussy so wet that when your penis is going in and out it sounds like a beat box.
"Man I had Michele so horny and wet last night that her pussy started to beat box! I was about to spit a freestyle lol"

"I can tell by her camel toe that I can get mak her pussy beatbox"
by shawrtywinking November 2, 2008
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Leigh was fisted so hard it beat boxed when she walked she had a beatboxing pussy
by Builtforsin June 15, 2015
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