To play video games excessively and become obsessed with every detail, everything else is less important than video games on a weekend of fenching, no breaks are necessary, food delivery is the only acceptable method of cooking, sleep is a waste of time & girlfriends/boyfriends should be blocked for fenching commitments unless they are also participating in a full fench.

Occasionally used to describe binge-watching a Netflix series without breaks.

Word popularly used by London gamers.
"Fenching my way through the entire game no breaks"

" I Fenched the whole Baldurs gate 3 campaign in 48 hours"

" I need to fench the new Fortnite update, I'm calling in sick"

"I fenched
by Wuujuu September 13, 2023
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Playing or doing something excessively , in particular Video games grinding away with no exposure to sunlight and destroying relationships, gaming goals are all that matter!
Sam and josh are fenching call of duty this weekend, don’t not expect to see them leave their rooms!
by G marshal Malus May 2, 2020
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Fench, an object in Modern Warfare 2 that wow inspiring stupidest commando lunges that you would ever see occur over.
Fench is to be used were fence would normally would be used.
Ex. I'm on the Fench about this subject.
by SgtTaters November 10, 2010
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A mixture between being Fat and Hench (muscular.) Fench could also mean 'beefy' or 'chunky' perhaps.
Oh my god! That rugby player is so Fench!
by Shaniqua of Chap3l September 3, 2012
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-a girl who flirts with EVERY single guy to the max
-is fake around guys, is suddenly a whole different person

-is a bitch and only real girls see it, and every guy sees her as an angel
-suddenly her friends become non-existent when a boy walks in the room
(she basically runs away from all of her friends to go flirt with a shitload of guys)
-will give you dirty looks if you try to talk to the guy she's flirting with
-omg she's such a fench

-that's the fakest laugh i've ever heard from her

-hey uh don't you and him have a thing? bc i saw (insert a fenches name here) all over him today

*fench starts flirting with kid who you know she doesn't find attractive*
by alecksyou September 12, 2017
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A sexual act involving small birds being placed in body openings.
Once two men were fenching and they couldn't get the bird out, so one man used a match to try and find it. However, the other man passes gas, giving both men third degree burns.
by Naked Avenger August 18, 2004
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A portmanteau of "fandom" and "stench", fench is the proper name for that ever-present smell of sweaty fans that lingers around any fan-based convention (Anime, Sci-Fi, Furry, Gamer, etc). Similar to bad locker-room smell, it has less of the wet-shower-funk and more of the Great Unwashed Bod funk.
By Sunday the level of fench in the Baycon elevators was nearly overpowering.
by Tugrik January 8, 2012
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