The act of consuming caffeine while smoking a cigarette at the same time.
Guy 1: What's he doing with all those legal addictive substances over there?
Guy 2: Johnning.
by Johnninh April 26, 2009
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When you confirm plans then cancel in the last minute.
by Fiddlewick March 23, 2019
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When you have completed a project and go back time after time to admire your own work!
After cleaning out my pantry (which was a war zone) I couldn't resist the urge to open the doors everytime I past by and john the end result.

Tom was johnning the new deck he built every 5 minutes.
by tinymh August 13, 2009
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It's that fuckin good good.
"Dude that was some John-John weed."
by Buns420 October 8, 2017
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"No johns" means that you can't make excuses. It is the perfect counter argument to anyone who is making any type of excuse whatever. When someone makes excuses or tries to make excuses, they are "johning". If this occurs, tell them "NO JOHHNZZ".
Me: "Dude, I just 4 stocked your Marth with my Pikachu.

n00b: "Yeah, but Marth isn't my main character."

Me (as well as crowd): "NO JOHHNZZ SON"
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The John is another informal name for 'the toilet'.
Sarah ran straight to the John after their long trip.
by Rbs January 27, 2005
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