When you dress up like an alien, and stick a girls head in a toilet bowl and have intercourse with her from the back.
by Jessiiboo33 December 2, 2009

A pathetic minge piece of shit who has no Respect in a chatroom in and thinks he's cool by dissing people he doesn't know. a towel head a FagKnob, A assLicker and DrunkenFag who needs a life and to stop messing with people in the chatroom.
by Ratt April 5, 2005

A cynical robot who doesn't think the best of most people. One of the main characters in "The Hitchhiker's Guide to the Galaxy"
"Here I am, brain the size of a planet, and they ask me to open a door" - Marvin The Paranoid Android
by Mr Beeblebrox February 10, 2012

by ASadBoi May 17, 2018

a bloodthirsty beast that stalks the public multiplayer lobbies of barotrauma for fresh victims, usually with the intent to massacre the entire submarine crew and himself in a multitude of ways
> join random server
> killing crawlers and cashing cheques all good
> player named "murder suicide marvin" joins the game
> "welcome aboard matey"
> do some more missions, become friends with my crew
> suddenly alarms start blaring
> lights go out
> crew runs to the reactor room to see it ablaze with one man standing in front of it
> "i am murder suicide marvin and this is a murder suicide"
> blinding flash
> submarine turns into a fireball, crew turns into red paste
> killing crawlers and cashing cheques all good
> player named "murder suicide marvin" joins the game
> "welcome aboard matey"
> do some more missions, become friends with my crew
> suddenly alarms start blaring
> lights go out
> crew runs to the reactor room to see it ablaze with one man standing in front of it
> "i am murder suicide marvin and this is a murder suicide"
> blinding flash
> submarine turns into a fireball, crew turns into red paste
by yeah ok fan January 8, 2023

Marvin Mobsters
Crew in Staten Island, NY...
Gomd...
Gods of Mass Destruction...
MCB...
Marisa Circle Boys
Marvin Mobsters...
Crew in Staten Island, NY...
Gomd...
Gods of Mass Destruction...
MCB...
Marisa Circle Boys
Marvin Mobsters...
by blthrskt October 18, 2009

by e boy January 1, 2009
