Cool uncle

Any guy named Xavier who takes his niece and nephew to go see Detective Pikachu on the day it comes out.

That guy, Xavier, is the epitome of a cool uncle.

by Coolguy X May 09, 2019

Cool Uncle

Mark Rober. A uncle who worked at NASA and now makes genius videos on youtube

Frank: Hey, that’s a cool uncle!
Jerry: Yea, he’s Mark Rober!
Frank: Cooooooooooooooool!

by Dinglederper May 28, 2020

the cool uncle

noun; a uncle who happens to be better then most people. possibly gets you a tattoo, dirt bikes, fishing, camping, and feeds you.

person one: hey whose max hanging out with?

Person two: oh that, the cool uncle phil. hes shredding some gnar with him.

by cardiacarrest November 15, 2013

Really Cool Uncle

Mark Rober An Uncle With A Degree In Mechanical Engineer That Worked At NASA And Now Makes Genius Videos On YouTube.

Thomas: Hey That’s A Really Cool Uncle
Coby: Yeah He’s Mark Rober
Thomas: Cooool

by Cleaver77 October 11, 2020

Really Cool Uncle

Mark Rober An Uncle With A Degree In Mechanical Engineer That Worked At NASA And Now Makes Genius Videos On YouTube.

Thomas: Hey That’s Really Cool Uncle
Coby: Yeah He’s Mark Rober
Thomas: Cooool

by Cleaver77 October 11, 2020