something described as slick and clean at the same time.
"yo man, that ride is sleen" "that's a sleen haircut"
by kocheese May 30, 2006
Get the SLEEN mug.
A word with many meanings, can be used as an insult due to it's origin's being a type of Lizard, or alternatively as a way of describing a party/ drinking session.
As an insult/ banter
"What are you, a sailor"
"Filthy slut"
"You're a fucking sleen"

As an adjective
"So, Larry's party tonight in town, all in for a long one?"
"Yeah man, we're gonna get Sleened!"
by HarkinsEgo December 18, 2011
Get the Sleen mug.
Common abbreviation of the lovely name 'Celine'. It certainly does not mean any of those other nasty things. :P
by Celine aka Sleen July 4, 2006
Get the Sleen mug.
v.t. to engage in anal intercourse (contraction of the trade name of petroleum jelly - Vaseline - tm) also sleener
After much pleading, James agreed to allow Patrick to sleen him.
by Harold B. Slusser April 28, 2006
Get the sleen mug.
a creature of some sort who has fish hands, a deformed toe, and is tall as oxen.. he likes to snowboard and sleep.
the sleen coon is out like a light once again
by wacko zacko October 13, 2011
Get the sleen coon mug.
An incredibly awesome audience
You all are so sleen
by V Dean June 19, 2019
Get the Sleen mug.