Top definition
A fake person or someone who claims a special or different background from the real one. A person who claims a certain hood or city that they've never been to.
That girl from the grouphome who said she was from San Francisco is just a nack.
by Ken H. Johnson August 02, 2006
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2
Drew:Steve Im gonna nack u
Steve: Drew, Nack me all night long
by Cordeiro March 12, 2005
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3
Snacks so delicious, you can't get the whole word out (without spitting out crumbs, that is). See also: nosh.
The only reason I ran that race was so that I could sit on my ass and eat all kinds of nacks without guilt.
by Snackstar April 13, 2011
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4
Nack is a slang for penis. Known to have derived from the fuction of the neck, to hold the head up.
"Suck mah nack you little whore"

or

"Doctor, doctor! I cannot find my nack, what is my problem"
(see inverted nack)
by Bobleam May 25, 2006
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5
A word that originates in Charlotte, North Carolina to mean dressed well, or "fresh".
My man Jay just got them royal posites. I'm telling you, the nigga STAY nack as fuck.
by Philburr March 16, 2011
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6
You're nack he's not the President he's the Vice President
by Cpugh12346 October 01, 2011
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7
Ive done my back in. It nacks like hell!
by guavarabella November 12, 2008
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