dumbex 

former spouse who repeatedly demonstrates stupid behavior

I was supposed to go out tonight, but the dumbex forgot to pickup the kids!

dumbex by DarJean June 25, 2009

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

Dumbell boy 

A guy in a relationship who keeps dealing with a woman's baggage.

He's just being a dumbell boy until he gets into her room.

Dumbell boy by Summerbees June 8, 2012

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

Dumbening 

A rare, genetic condition found in males, usually surfacing at the on-set of puberty; the result of which is a swift plummeting of the carrier's overall intelligence.

Young Abraham quickly went from smart as a monkey to dumb as a chimp, as a result of his dumbening.

Dumbening by Michael T. Lynch Jr., Scientician October 12, 2003