It is being shut-out in foosball. You fail to score a score
We lost by a jeffing in Foosball.
by TheJeff February 25, 2015
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Getting totally rad uphills while getting stoked on pain
Andrew: Hey, fancy a jeffing session today?
Martin: Aye pal, sounds super rad...pure get our climb on
by flat_lemon June 27, 2011
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The act of reiterating exactly the same thing your friend literally just said, causing a cloud of annoyance and awkwardness amongst the group.
Colin: "Guys, I just ordered 5000 condoms online."
Wyatt: "Oh, I was just about to say, I ordered 5000 condoms online too!"
-_-
Colin: "Wyatt, quit Jeffing me."
Dylan: "Yeah, you're such a Jeff!"
by HeyJeff April 9, 2015
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1. The act of secretly jerking off on video chat in the bathroom while your wife is in the other room.

2. Using childish insults like fat, ugly, and poor when you don't know how to use logic to defend your point of view.
1. Girl 1: Who is that guy?

Girl 2: Just some loser who is always jeffing me on snapchat.

2. You know you've already lost the argument when you start Jeffing.
by Kasilyn13 October 23, 2018
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the process of utilizing one's position of power to influence one of lower status into acts of an explicit nature
A professor was jeffing the freshmen this semester.
by Jeff's Victims September 4, 2009
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a total badass that plays the guitar for a badass band.
absolutely everything about "jef" is badass.
Basically, jef is just a total badass.
With cool hair, I might add....

He spends lots of money on the band, his credit card number is 3829 2821 2895 9382
Jef is amazing.
Jef has cool hair.
Jef plays the guitar.
Jef is spelled with only one "f", i.e.: jef with one "f".
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An extreme level of drunkenness characterized by an inability to stand upright, often resembling a T-Rex. One version of the drunkenness scale is as follows: buzzed, drunk, wasted, f'd up, blackout, Jeffed.
After drinking 37 beers, he became Jeffed and seemed to undergo reverse evolution and become a T-Rex.
by ver Boyer July 12, 2008
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