1 definition by BetterthanJT

Top Definition
A man who thinks he knows it all. But, of course, all of us around him knows he is full of shit.
"Ben said he knows the world is going to end today"

"Naaah, he is just JTing"
#jt #know-it-all #wrong #nerd #dork
by BetterthanJT March 09, 2012
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