Uncle Matt is a slang term used to refer to someone who is involved in the illegal sale and purchase of marijuana and shoplifting. The phrase "the only thing down low for Uncle Matt" is used to describe the activities that he is involved in. It implies that he is involved in activities that are not socially acceptable and that he is trying to keep them hidden from the public. Shoplifting is a crime and the sale and purchase of marijuana is illegal in most places,
by Chaddy Matty January 14, 2023

by Jakob Perry December 30, 2019

Pathological Liar, Unable To Commit Likes to Hear Himself Talk
Usually A Short Man That Walk Around Thinking He Such A Badass.
Usually A Short Man That Walk Around Thinking He Such A Badass.
by Nina313 March 3, 2022

The type of guy who talks about Getty pussy but has nothing to show for it. Puts money above all else, and will fuck you over a signed ekeler jersey.
by Thatdude42069 December 3, 2022

by auxferd October 29, 2023

A self righteous, uncaring self centered piece of work. Matt Allen's are as smart as a Allen key wrench set, but those are more useful. They have a horrible temper and are always red in the face. Your best friend one minute then stealing your shit the next. Basically a complete squid.
Dude 1: why do you think you have the right to do whatever you want?
Dude 2: because I'm Matt Allen!
Dude 2: because I'm Matt Allen!
by Brutus the toothless May 3, 2020
