Top Definition
Shorthand phrase for "In the butt, no babies," referring to the use of anal sex as contraceptive.
Noah: "Aren't you worried about knockin' her up?"
Karl: "Nah, brah! In the b, no b's!"
Noah: Werd!
by Capt. Fantasy August 18, 2006
5 Words related to In the b, no b's

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