Top Definition
A B cube refers to a rotund woman who must possess 3 essential qualities - big boobs, a big butt and a big belly. Since these 3 qualities all start with the letter 'B', she is therefore known as a B cube or a B cuber.
Jesus, Dan sure attracts those B cubers at the club!

Did you see the B cube Dan got with last night? She was oozing oil on the dancefloor!

Man, I wish my girlfriend was a B cube, just like Dan's!
by Banerjeehad October 23, 2010

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