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Someone who talks shit (tells lies) all the time) or a nappy that someone that talks a lot of shite generally tends to need.

Jamie : "Liam is coming over to night for a drink"

Mark : " That guy is a fuckin chin nappy"

Jamie : " I know, but its funny to listen to it"


Liam : " I used to be a professional boxer, and i had an underground fight with mike tyson and won. the only reason i couldnt tell anyone then is because it was bad press for mike tyson. "

Mark : " I smell shite mate, i think you need a chin nappy"
by Dirty Hand Bag August 24, 2009
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