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2.
The period after leaving an after-hours club when one generally hangs out with other sketchy people while coming down off of club drugs (ecstasy, speed, etc).
Last night after the club I had a great sketch out over at Dave's place. He threw on some music and we played Playstation until we passed out.
by Adam Hawkins July 08, 2006
 
1.
To become scared or paranoid about a certain thing.
That chick was making me sketch out.
by EssPea January 17, 2005
 
3.
(skeck-owt)
-noun
1. A moment is in which someone is totally weirded out by either life or the sketchy behavior of another person.

2. A slight panic attack-like reaction to too much sketchiness.
Gina's sketchout occured on account of seeing her ex's (who didn't want to be in a relationship) facebook relationship status changed to in a relationship one day after their breakup.
by Mikey27 January 09, 2010