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Bum in Argentinian slang. Also means someone that resembles a bum.... badly dressed... bad grammar, etc.
You look like a groncho wearing a Barnum & Bailey Circus t-shirt.
groncho by Anouk September 19, 2005
Related Words
Argentine slang - a derogative term for someone demonstrating "low class" behavior.
He just skipped out on paying the bill, what a groncho!
groncho by Dr. HS Thompson May 3, 2011
An adjective to describe something gross or unpleasant one is experiencing or must do
I'm so sweaty after that run, I feel so grench.
Joey was off his face last night. It was grench.
This assignment is going to be so grench.
Grench by YikesNikes August 10, 2016

Grincho mode 

An increasingly popular term used by hood rats who uncontrollingly lose their rag.

The festive act of going ape shit.
The waiter brings over my peng bacon fries, oh no they've forgotten the bacon (*DEPLOY GRINCHO MODE*)... waiter ends up in the deep fat fryer, he'll never walk again.

The caretaker walks out of the toilets having just snorted a line of Ketamine, he looks around and sees a kid giving him the evils (*DEPLOY GRINCHO MODE*)... The kid ends up with his face in the urinal and has to spend the rest of his life eating through a straw.
Grincho mode by Yoda Gaming December 19, 2018
Somebody who is the polar opposite of sloopy (sloppy and droopy). Usually someone who does their homework ahead of time, only cares about grades, and is always nervous.
Dat librarian is such a grench.
Grench by Sloop Dogg April 18, 2010
a Salvadoran derogatory term to make fun of primitive, low life, hillbilly people that are stuck up and think they are the best damn thing
-milena: omg! look at that grench, he wears sunglasses in the night
-camilla: hahahaha, ew cholero!
-milena: lentes en lo oscuro, gato seguro
-camilla: lol you made my day
grench by umirin93 May 25, 2011