To cover one's face in vomit when intoxicated and unknowingly wake up with vomit stains over your face. Most often associated with projectile vomiting while lying down.
Dude, he totally sleshed all over himself! What a douche!
by x19059 March 24, 2009
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Slesh, also known as sesh but slesh is where everyone is just getting with eachother no matter who it is they are shagging or pulling,
I'm going to a slesh later, can't wait to get onit and get wi someone
by Fkn Druggo March 24, 2018
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Most commonly used in place of cool or rad.
Also used to describe a person with good looks, or who is sharply dressed.

Not directly associated with Slesh Hair.

Prefix of Slesher.

In some areas it is considered an honor to be named this.
That dude's so slesh...
You look so slesh today...
by anonymous0123456789 June 13, 2008
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(New teenage "genre" label, seemingly a branch off from scene and emo.)
Slesh kids normally have big hair. When I say big, I MEAN big. Normally bigger than my hair, mine is small slesh =
But yes. Slesh hair resembles large teased up emo or scene hairstyles.
To make your hair slesh, simply use LOTSof hairspray && a comb. Tease and back-comb your hair until its spikey and fluffy and frizzy =D
Corey : "Shit bro, look at that emo kid's hair!"
Sam : "Nah man, his hair is too big to be emo. He's slesh"
Corey : "... so slesh hair is different to emo hair?"
Sam : "..." -slaps-
by x.//.Whorebox.\\.x March 2, 2007
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