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
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Not the best looking person. He will for sure be there for you. No matter what happens. He is very caring and sensitive but doesn’t show it
by Sklq October 24, 2019
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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
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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 3, 2007
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when luigi is pumping in a bunny suit whilst playing barn finders and doing horse tilt
shagira miamoto "yo, dude what are you doing?"
a random man named Doug "I'm currently Luigi pumped"
by Asidrane March 8, 2022
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