3 definitions by BettyTom

Like in chemistry a chemical bond between two items.. A compound is like soul mates.
'Woah Jane and Mike are a compound'
'I know they are made for eachother!'
by BettyTom October 5, 2007
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1)Shortened for Knock-back. When someone asks another to have sex with them but they reject the asker.

2)Now commonly used in the Uk as rejected
1) 'Hey baby wanna shag?'
'No thanks.'
'Omg you like totally kb'd me

2) You start talking to someone and they ignore you
Aaah! KB
by BettyTom October 5, 2007
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