1: The most underrated Nintendo character, and also my favorite. He wears a green shirt with blue overalls, and a green cap with the letter 'L' on it (Although back in SMB1, he wore white with green overalls), and was underrated and overlooked until he got his own game.
2: The best character in Super Smash Bros. Melee, no doubt. Much better, in fact TIMES better than Mario in all aspects of combat, with useful smash moves and devastating aerial attacks.
It's no wonder you have to unlock Luigi, he's so damn good. Fuck Mario, let's give Luigi props for a change.
by Hand Hanzo January 22, 2005
After some anal sex, the dude inserts a piece of PVC pipe into the blown out anus of the chick, and precedes to shit into it while humming the underground mario theme music (deedah deedah deedah, deedah deedah deedah). Upon completion of this, the chick shits out dude's shit.
Dude, I gave that chick the Luigi last night!
by Macinater July 21, 2010
the gay brother of mario from the super mario series. luigi tends to have his ass handed to him.
luigi: Itsa me! luigi!
Guy: no one cares!
by El Douche bag-o February 20, 2010
Hey dude , your turning into a Luigi !
by stonkey123 April 25, 2009
In golf, a putt longer than the length of the flagstick. See also guido
Now THAT a mufughin' luigi!
by Kid Fury October 28, 2004
That guy that Mario likes to ride. He's green, but can turn blue when Mario's been on him long enough.
Mario: Hoho! *jumps on Luigi's back*
by Ninjagecko August 03, 2007
A referance to a nooblet in real life or in games, the word is originally taken from Mario's half-assed brother who tends to fail in everything, and required constant management or supervision.

The word took on a different meaning due to the actions of a certain individual, famous throughout MMO's for his love of Luigi as a nickname and his constant habit of messing things up, thus causing natural, environmental, or social crisis.A person who does not focus in a conversation and suffers an extreme lack of short-term memory as well as having the ability of blocking out certain sounds or words when it is imperative to hear them. In simpler words, a luigi is what is below the ranking of a noob in all aspects of life.Luigi is gaining in use especially among the online community.
The word can also take on a greater social meaning through the word Luigisim which is a social state where only noobs or retards are left to manage society.
*in an utter hopeless screwup*
the appropriate use of luigi would be:
"OMG, that was so luigetic"

by ToxNanVe March 19, 2008
a toilet, craper, and john
" I have to go use the luigi."
by MC RAY November 29, 2006

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