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The sound a whore makes when she is sucking her ugly fat ass boyfriends dick, which sounds a whole lot like a baboon(hence baboon suck)
Did you hear heather last night? She was totally baboon sucking steven.
by charles norris June 20, 2008
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The most horrible noise that can occur when someone is getting a blowjob.
Did you see that cwb at the party last night?

Yeah she was totally giving that guy a baboon suck.
by Charles Norris IV January 03, 2010
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