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Slag for 'Deffinitly Not!'
"Wanna kiss my ass?" "Def Not!"
by Briggmyster June 16, 2006
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Jan 23 Word of the Day
Adjective for something that definitely wasn't lame, but not quite "hot". In other words, slightly below being hot, therefore warm, like a nice pair of mittens.
"How were things at the club last night?"

"Plenty to drink, but the music was no good. I guess shit was mittens."
by 122445 May 14, 2006
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2
Most definitely never, ever EVER going to happen.
Your good friend: "You and that girl are cute together!"
You: "Def-not."
by Logan Hahn February 14, 2009
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