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1 definition by DaRKeniNG

1. NI
NI = Not invited

A person that Butts into a conversation when he/she is not invited... thus being a NI
Person 1 "Hey how you doin?"
Person 2 "Hey man im ok so hows... stuff"
Random person "Hey guys"
Person 1&2 "Shut up u NI"
by DaRKeniNG Jun 1, 2005 add a video
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