What is Nack?
1.
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)
See
2.
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.
See
3.
Gay Penetration of two men
Drew:Steve Im gonna nack u
Steve: Drew, Nack me all night long
4.
to hit someone or something.
to slap
im gonna nack you!
He nacked me!
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5.
The idea of or situation pertaining to someone getting fiercely anally raped
man, that drunk girl at the party got sooo nacked by those guys with a screwdriver