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13.
A certain style of facial hair consisting only of a moustache and chin hair.

Named after King Louis XVI of France
I had a fresh shave this morning, but I left a Louis
by XVI March 18, 2013
 
22.
Usually a person that believes he is the god of everything simply because he has the name of French Kings. You will encounter it listening to Radiohead while saying everyone else is bad because they do not like the music it likes (see Hipster). It usually wears a beanie hat to hide the disfiguration that listening to abstract music too complex to the brain does. A Louis also slay souls by merely talking people to death, and holds them inside his body, to make him immortal for every soul he sucks in.
Person 1: Have you heard the new Strokes album? its a actually pretty good, i expected it to be a little iffy.

Person 2: Yeah, im sur...

Louis:WHAT THE F*CK ARE YOU GUYS TALKING ABOUT! THE STROKES IS JUST REPETATIVE ELECTRIC GUITAR WITH BAD STRAINING VOCALS FROM SOME STUPID WHITE HOUSES ALCOHOLIC! EVERYTHING IS BAD COMPARED TO RADIOHEAD! BOW DOWN TO ME BEFORE I SLAY YOUR SOUL!
by xXxiH1pSt3rxLOveRx321xXx March 25, 2011
 
23.
A cretin.

A weak, spindly individual who is moderately intelligent and in some extremely rare situations can be sometimes good at things such as music or art. However, this person has no social or hygiene skills and most often than not, will have an awful haircut. This person is also terrible at sport.
Guy 1:Whoa, I just say that Louis kid..
Guy 2:What, that cretin?
Guy 1:Totally
by TheM@estro November 24, 2011
 
24.
A realy anying ginger twat who loves to bum suck of jacob and finn
Louis whiped his ginger mullet at finn and jacob as they stripped down
by Seximarley May 23, 2011
 
25.
Meaning a complete gaylord, one who insists upon an anal enema on a daily basis. Another word for echo arse. He's an insufferable tool of biblical proportions, who deserves to be roundhoused in the face at every available opportunity. Tals total rubbish all the time. An ear drum punisher in the extreme.
His Loui was so huge it was like chucking a sausage down an alley.

That bloke talks so much crap. He's a proper Loui.
by Stratfink February 25, 2010
 
26.
the word given to someone with an abnormally large head.
"Omg Graham that man's got a real Louis"

"awwh man, he's a louis"
by Jerry Jacob July 06, 2009
 
27.
A direction to turn left.
"Hey at the next light bust a louis",
by CityChi November 23, 2007
 
28.
Louis is used as slang to refer to a Louisville Slugger. In other words its a bat.
I got forty in the back and I got a louis in the trunk! Nigga do something!
by snowblower March 27, 2005