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Short for "Just Fucked Glow"

A look of contentment that comes over people after having really good sex, or a particularly intense orgasm.
Wow Lori, you have a really nice JFG!
via giphy
by Planarroulette August 21, 2017
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2
jfg, another from of web lingo, is similar to wtf, or omg, meaning 'just fucking great'.
jfg, mom just got home, g2g, ttyl.
by wjdb August 06, 2008
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3
Meaning "Just Fucking Google it". Said to people who have asked questions where the answer can be found by a quick google search.
"What's the capital of Australia?" "JFG!"
by Wellnz December 15, 2009
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5
Just fucking great. Analogous to "Good Job" but intended to connote high relevancy and impact of the action.
Thomas this is JFG. Your analysis is spot on and conveys exactly the information the client needs.
by mofo_mofo June 06, 2018
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6
Jesus F’ing God
Man, I posted that I was looking for a date for flag day, but left out the “L”.

JFG!
by RangerGeek February 18, 2018
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