Top definition
very similar to ANB. when such an unbelievably attractive female comes into sight, even the peripherals, your boxers instantly fill with semen. there is no way to prevent this. like ANB, INB is typically an extremely sarcastic joke for the ugliest women alive.
Oliver: "The floor is shaking, Kimberlyn must be coming"
Mark: "Don't look! You will bust multiple nuts!"
Kevin: "Shit...I couldn't help myself. I just had to look at that fine ass INB."
by WeinerRedeemer December 13, 2009
Mug icon

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug
2
A shortened version of "I'm not bothered."
girl1: ooh look, your ex-boyfriends over there.

girl2: excuse me, INB.
by Livii August 08, 2007
Mug icon

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug