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1.
The better yet always ignored of the Mario brothers. He's obviously better, I mean, come on, his brother had to be saved by "scaredy-cat" and the supposedly weak Luigi!
"Thank you, Luigi!" "Finally, peaople see that I'M the star!"
by SSG June 16, 2004
 
2.
A pimp-ass motherfucker who always gets outstaged by his short, fat brother, Mario
Luigi's gonna cap Mario's ass one day!
by Anonymous September 12, 2003
 
3.
The younger brother of Nintendo's duo known as the Super Mario Bros. He is taller, wears green, and isn't as fat. Proven in Super Mario 2, he can jump higher. Starred in 2 games, 1 of which is often overlooked because he didn't have his name in the title, that was Mario Is Missing, and of course, Luigi's Mansion. Has less followers but is cool nonetheless.
Luigi is oftentimes better then Mario in most of the new games coming out.
by Oxtor4 May 03, 2004
 
4.
A really cool guy who doesn't get as much attention and/or fans as his brother, Mario. Taller and slimmer than Mario, and dresses in green.
Luigi will kick Mario's sorry ass one day.
by Atomic Chainsaw November 27, 2003
 
5.
Luigi Mario is the youngest of the 2. He spouts amazing amounts of attacks. He can run faster and jump higher then Mario. But due to his proness to fear and being quite shy, he isn't really great on adventuring. Many people think that it means Luigi is jealous of Mario, but that's not true. Luigi enjoys taking small jobs like cleaning the house and ACTUAL plumbing jobs.
"Hey Luigi, Can you handle the plumbing jobs that come from when I leave? I'm gonna sign autographs."
by Luigifan12 July 02, 2004
 
6.
Oi, this guy is an underrated Italian. He's often upstaged by Mario, and needs more attention. Luigi is definately a great guy. He's just got a crappy job: The second fiddle to a fat Italian bastard named Mario.
Whoo!!! GO Luigi! He's definately the best!
by Lieutenant Tarpit July 10, 2004
 
7.
Luigi is generally viewed as the lesser known of the Mario Brothers who occasionally makes a cameo appearance in Mario games and rarely stars in games himself. Luigi often serves as the second player character in Mario games. However, this is not because Luigi is less capable or less popular. It is because Luigi has got more important shit to do than save his brother from turtles and dragons all the time. In fact, these is some question as to whether Mario's "enemies" actually exist or if Mario is just on a perminant acid trip. Luigi only appears in Mario games after Mario dies because Luigi is only there to bail Mario's ass out of difficult situations. Luigi actually served 10 years as a green beret in the United States Army (thus the green hat) and is capable of beating the living shit out of Mario or his foes at any given moment, but likes to see his brother sweat a little. The reason that Luigi's army status is not widely known is because most of his work has been classified, but Luigi has actually ben credited with the such infamous feats as the asination Archduke Franz Ferdinand of Austria, thus beginning WWII.
-Hey, who do you think would win in a fight between Luigi and Vin Diesel?

-I don't know thats too tough to answer, but the one thing we do know is that they could both kick the shit out of that pussy Mario.
by Steve-o 1234321 October 09, 2006