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Serves as a multiplier of sorts for the adjective "Sketch." Can be used to describe any person or situation that is unpleasantly odd or out of place. Often used specifically to denote a person who may seem untrustworthy, paranoid, or generally displeasing.
"Sitting in a parking lot with your lights off at 2 a.m. is way sketch ball."

"That dealer is a sketch ball to the max."
by Chandler W December 02, 2006
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a. A person that is so involved in drugs, alcohol, sex, and general debauchery above what is conceiveably possible.
b. A shady character.
c. Someone that appears to have no moral judgment, self-respect, or general hygiene to the point where he/she is a total laughingstock that must be avoided.
Holy crap man, he lives in Roxbury, obviously hes a sketchball.

She dumped him and went out with two other guys on the same day? Holy sketchball, batman!
by Rooster October 24, 2003
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a.) The noun form of sketchy.
b.) Someone who participates in activities that you wouldn't want the majority of people to know about because people will think you're creepy, and avoid you.

Normal behavior of a sketchball include:
Hitting on girls outside of preppy suburban bars.
Sitting by themselves at night on their sidekick/blackberry
"Accidently" sleeping with people
Lurking people like crazy on facebook/myspace/AIM.
Man, Wesley is such a sketchball, he was lurking that girls myspace at the show, while SHE was at the show, somehow he ended up "accidently" sleeping with her, after he hit on her friend last night.
by ChristineOhhh May 27, 2007
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a guy was lurking behind a building by himself at 3 am. What a sketchball!
by Ellie September 26, 2003
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A person, place, or event that is of questionable quality and/or reputation
#1
Matt: Are you sure they won't card us at this liquor store?
Me: I dont think so, it seems pretty sketch balls to me.

#2 Matt: This chick really wants to hook up with me tonight.
Me: I dont know man, she seems pretty sketch balls to me.

by da balla 1234 February 09, 2009
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