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It’s an acronym for Shut Your Lame Ass Up N****
Bro sylaun
Sylaun by Chumkumy May 31, 2024
Related Words

slaunch donkey 

Biggest bass you'll ever done see.
Wow, I was at the lake and I caught this slaunch donkey
the act of chugging your drink when someone calls it. Slamming your drink all at once.
Troy: Slauncher!!!
Brian: FUCK, we just chugged a minute ago!!!
Troy: Do it!!!
Brian: If I puke, it is your fault!!
Slauncher by T & B July 22, 2009
The act of shitting all over a wall, toilet seat, dumpster, or other vertical plane.

A favorite act of panhandlers and bass fisherman alike.
Ruben (to a Truckstops of America team member):

"Do you have any showers Available?"

Truckstops of America team member (to Ruben):

"We did but the several guys from the bass tour just slaunched in them. Matter of fact, your friend Clay just slaunched the last one. The showers are all closed for cleaning."
Slaunch by Fuck lasalle February 15, 2021
Someone who has a kind heart and loves being around her friends and is very talented and is beautiful
l and can be shy at times but is mostly outgoing.
you are a sylana kid

slauncha 

Pronunciation of the Gaelic word Sláinte, meaning cheers or "to your health". Popularized by Irish pubs and beers such as Guinness.
"Slauncha!" (when raising a pint and celebrating with your friends)
slauncha by Alan Dobkin April 10, 2007