dumbert 

A person or living thing that acts stupid or is stupid.

Sonny you just tripped on your own feet like a dumbert.

dumbert by Wolkind July 21, 2008

Dumb and Dumber

What many Game Of Thrones fans call David Benioff and D. B. Weiss, aka the creators of Game Of Thrones.

Dumb and Dumber can't write for shit, but that's not suprising one of them wrote X-Men Origins Wolverine. GOT season 8 is complete garbage, Dumb and Dumber are going to ruin Star Wars next.

Dumb and Dumber by Spideyrule May 20, 2019

Dumb and Dumber

A particular pair of TV writers incapable of understanding the basic principles of character build-up and story telling, and that when a plot is really good, it does not need to be explained in post-credit commentary footage. Formerly named by their mom's as David Benioff and Daniel Brett Weiss, now known worldwide as Dumb & Dumber, aka "D&D".

Guy A.: Wait, why does Deadpool have his mouth sewn in this movie?

Guy B.: Oh that's Dumb and Dumber's brilliant take on being original, instead of giving you the "Merc with a Mouth", they wanted to subvert your expectations by giving you The Merc WITHOUT a Mouth... In their heads it's so deep they probably feel compelled to explain it in additional director commentary footage...

Dumb and Dumber by -Symph- May 18, 2019

Dunbartonshire Dumbarton Complex

Dunbartonshire Complex means having that state of mind thinking association with or living with people from Dunbartonshire, Scotland makes one dumb.

The Kiltbearers were aghast by Oprah after she showed signs of having Dunbartonshire Dumbarton Complex.

Dunbartonshire Dumbarton Complex by Cyclonetrading July 6, 2021

Dumbarton Complex 

Any dumb person who thinks that Dumbarton translates to being "dumb."

Jessica refuses to live in Dumbarton because people might think she is dumb. Oh boy, she has DUMBARTON COMPLEX.

Dumbarton Complex by Cyclonetrading July 6, 2021

Dumb and Dumber

Probably the best movie ever, starring two losers named Harry and Lloyd that can't seem to do anything right. When Lloyd finds a suitcase that a girl he drove to the airport left in his taxi, he and Lloyd travel to Aspen to return it. Includes such brilliant quotes as "You sold my dead bird to a blind kid?" and "You are one pathetic loser! No offense."

"I saw Dumb and Dumber last week, shit that movie is awesome!"

Dumb and Dumber by KaiserMonkey August 17, 2003

dumber than a box of rocks 

when ur pretty dumb. my mom says this to me all the time.

Ur dumber than a box of rocks
-what?
shut up dumbass

dumber than a box of rocks by barbarino April 18, 2005