Top Definition
One of those really huge size 22 chicks who obsess over their tree trunk thighs and bag out skinny girls. They look like a reversing truck coming at you so slowly (a bare waddle in most cases).
Guy : Dude, check out that chick! Yum!
Guy 2 : You douche, she's such a fucking beep beep betty. Fucking role her over with a stick and suffocate her.
Guy : More cushion for the pushin bro
by i<3fatchicks October 03, 2008
5 Words related to Beep beep betty

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