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1.
WTN
What the Nerd, referring to nerds. Can be Used instead of WTF.
Ex. 1
"Look at that nerd."
"WTN"
Ex. 2

"You have a F"
"WTN"
by Waverunnerdude13 May 17, 2011
 
2.
wtn
Stands for What the Nig. Used as an insult to dark skinned people and a comment on something that is odd, or strange. Not often used in public, for it screams Racism. A replacement to WTF (What the fuck)
WTN is wrong with j00!
by Lord Permillium III November 12, 2004
 
3.
wtn
Abbreviation for what the noob, which is the most powerful "what the" ever known. It outwits what the heck, what the hell, what the fu**, what the shit, what the damn, what the cows, etc. No origin of the word is available, but it was presumably started by teenagers in Hong Kong.
George Dubya Bush:(spills paint on Kim Jong Il's uniform)
Kim Jong Il:Wtn you *@$#!
by CBNSK October 22, 2007