doombrain 

Doombrain - someone so stupid that any decision they make in life or work, leaves a wake of rack and ruin behind them. These people are normally very short sighted and cannot metaphorically see more than one foot in front of themselves.

Wow, Gary just crashed his car because he was too busy looking out the window at a three legged dog. What a doombrain!

doombrain by Boontown July 8, 2014

coombrain 

A person who excessively masturbates to the point of frying their own dopamine receptors.

Friend 1: Hey did you see Friend 3 accidentally leaked his PornHub account?
Friend 2: Yeah, he has over 2k+ videos watched. What a coombrain.

coombrain by MonasThighs January 31, 2021

dogbrain 

A woman with the brains of a dog; just relentlessly doglike in cognitive skills and frequently in behavior. Frequently used on Matt and Shane's Secret Podcast.

The chicks Tim brought to the beach house are absolute fucking dogbrains.

My girlfriend forgot her keys, took forever to get ready, and then spent half an hour on her phone with her friend. What can you do? It's a dogbrain.

dogbrain by __1__''__= July 15, 2021

Doombringer 

1.One who brings doom
2.The pinnacle of all mankind. Although slightly shy, once the creature chooses to reveal itself, total enlightenment to al things in th universe shall be bestowed upon those who listen

Last night, I heard doombringer speak, and now i am a master of knowledge.

Doombringer by dick hardwick June 7, 2003

doofbrain 

a doofus, used as an insult. very dumb person and is an idiot

hes such a doofbrain

doofbrain by hendobro June 2, 2019

Multi-lane Doomtrain 

When all lanes on one side of a highway are occupied by vehicles driving next to each other in a line at the minimum speed limit so that no vehicle can pass them. Aptly named due to the ''train'' that forms in each lane. Attempted only by the brave due to the extreme anger and violence it can cause.

Someone is gonna beat that guy's ass for forming a doomtrain in the ultra-fast lane.

Multi-lane Doomtrain by Case in point April 7, 2004

DoomMarine 

He is an elite player of games; one of the best gamers.

Damn, nice shot DoomMarine.

DoomMarine by The_Break May 15, 2003