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Shortened from the word treacherous, tretch describes something that is dangerous and if desired, cool.

Much like the slang word "sick" it can be used in both positive and negative scenarios.

In the positive sense it can mean fun, daring, chill, etc.
In the negative sense it can mean sketchy, wrong, or terrible
For example:

Positive: "Hey Demarcus, that party was majorly tretch, mann!"

Negative: "Yo man, we have to get out of here. This shit is hella tretch."
tretch by Treacherous Whore July 22, 2009
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Tretch is a furthur acknowledgement that something is Sketch(y) or Unreliable, It is also a combination of the word true, and sketch. And can be applied to any lame or Sketchy situation
" That police officer is going to see us smoking this sticky-icky bong rip!
This is Tretch Dude!!!!"

" That party was tretch man, there was alot of illegal activity and I felt threatened by it..."
Tretch by Sebastian Fox October 7, 2003
the quality of being treacherous; a type of person or situation you have to walk a thin line with/is confusing
Girl 1: Megan is like so tretch
Girl 2: Right? I can never tell if she's, like, cooler than me or weirder than me

Guy 1: Ugh, this assignment is so tretch, I can't even tell what it wants me to do ... I'm just gonna use chatGPT
Tretch by BigDickedBob January 17, 2024

Tretch Man 

1. Wasteman, derkhead, eediaat
2. Dretlin, bredrin, tretch
"Oi tretch man!"
"Safe tretch"
Tretch Man by JO!? August 28, 2008

trench cut 

The trench cut is a standard military haircut from WW I to the present. It featured shaved sides and back of the troop's head and left a little on top. This was a fast cut to give and prevented vermin nests in most of the head in trenches
The troops received a Trench cut prior to deployment.
trench cut by I, Wreckerrr May 26, 2020

Trenches 

A crime ridden area or hood known for its crimes and violence.
Trenches by Platano Power November 20, 2016

trench spike 

A weapon used during WWI to stab peoples in the brains. Also, an exceedingly good anti-zombie invasion weapon.
!) Zhe Germans are coming. Do you have your trench spike?

2) Zhe Zombies are coming. Do you have your trench spike?
trench spike by Vladimir McCools October 23, 2007
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A girl who does ballet and only talks about ballet. Her schedule is filled with dance classes which does not allow her to do any other activity.
"Hey, do you know that girl Sally?"

"Yeah, she's kind of annoying. All she ever talks about it ballet."

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"Yeah... I know."
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trucker's tan 

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I had a trucker's tan after driving for 10 straight hours on a sunny day.
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The phenomenon where adults salivate at children's toys
Every time I walk into the toy aisle, I catch myself kidulting over the latest action figures and LEGO sets!
kidulting by Emotional Cruiser October 12, 2025
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British slang for a scientist or technical expert, esp . when the speaker is not certain of the expert’s specific field of study. Not necessarily derogatory, but typically used by persons without a technical background. In the US, the equivalent would be “egghead”, “squint”, or “geek.”

Origin of the word is unknown. Started sometime in World War 2. Given the typical evolution of British slang, could easily have started because what these experts did was confusing or “baffling” to the common person.
According to the boffins downstairs, the murderer used a serrated blade.
Boffin by Agnon February 11, 2023
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