Dumbin 

What you call that one friend named Damon that’s a little slower than the rest of the group.

Evan: hey Damon we’re going to the bar
Damon: should I bring my ID?
Everyone: *Sigh* dumbin

Dumbin by Evan and Kaliko May 8, 2019

Dumbin 

Chillen, coolin, relaxin, laxin, hanging out, melting.

I was dumbin on the couch all day. I didn't even feel like gettin up to piss!

Dumbin by FreshPrince603 May 1, 2012

Dumbin out 

chilling, cooling out, hanging out, relaxin, laxin.

"What you doin?"
"We just dumbin out"

Dumbin out by FreshPrince603 May 1, 2012

Dunkin Dumpin Donuts 

Dunkin Dumpin Donuts is the act of anal penetration.

Juan was in the park playing Dunkin Dumpin Donuts with the street boys.

Dunkin Dumpin Donuts by I, Wreckerrr October 3, 2016

Dumbification 

Fucking someone so hard they go stupid.

Person A: dude, I’m totally into dumbification.

Person B: that’s fucking weird dude

Dumbification by Poosayslurper42069 June 12, 2022

dumming out 

A term used in Connecticut for the dance that was made in the 860 area code, particularly Hartford. It involves imitation of common activities such as making a Rubix cube and shooting guns.

"Yooo you saw how he was freaking it at the party? I wish I could dum out like 860 heads."
"I'm a pro at dumming out, play some Gangstalicious for me."
"You cant dum right my guy, you're from 203."

dumming out by Pepsitaylor December 14, 2017

Marc Dubin 

Someone who is an old guy who pervs on kids during math.

Our math teacher is a real Marc Dubin.

Marc Dubin by Dick Nickelson June 15, 2017