Demellowed 

To be owned or stupid.
To have no knowledge of a certain subject and still continue to talk out your ass.
One who asks an over abundance of ADD related questions on technical forums.

"I burned my clutch out again"

^
"dude, you totally Demellowed that"

Demellowed by HMUSN September 26, 2008

DeMelloed 

To royally screw something up.

See Epic Failure

Boy! He really DeMelloed that one, didn't he?

DeMelloed by JustUsChickens2 September 26, 2008

Demelloed 

{v} One who did something completely stupid and dumb. A dumb action. To act in a way that makes one appear simple. To use absolutely no common sense. To ask a question which has clearly been previously answered.

Person A: I zipped up my pants and caught my ball sac in the zipper.
Person B: Dude, you just Demelloed!

Guy 1: So I learned how to do burnouts last week! Its so cool!
Guy 2: Nice man! I bet you get the pussy with that!
Guy 1: Yea dude, it's sweet....but I can't figure out why my car is starting to break.
Guy 3 (to Guy 4): Dude, he just demelloed!

Demelloed by one88888 September 29, 2008