An exclamation used as a reaction to hearing some information about incredibly sketch behaviour. Derived from the common Bristolian saying "shit the bed".
Jon : "Did you hear about how he bootystepped 10 different people in 2 weeks?"
Chris : "What the fuck? Sketch the bed!"
sombody that is reallyparanoid when they are ''high,stoned,baked,''.
or also can be used when a person acts stupid when they are ''high''.
ex1.sketch monkey: a dawg u got eye drops?
hommie: na dawggg but ur eyes are fuckin white geee??
sketch monkey: why do u have to lie!?
hommie: I iant dawg ur eyes are white!, u fuckin ''sketch monkey'' lol.
ex2.
hommie: are u ganna take a hit rite here in class??
sketch monkey: yea why not??
hommie: dawg ur a ''sketch monkey'' ur ganna get cought up.
sketch monkey: hommie ur a ''sketch monkey'' nothings ganna happen mr.teacher is old he wont smell shit.
A person(s) that weirds you out and makes you a little uncomfortable when they're around... not overly uncomfortable where you don't want to be there just enough to make you think of other places you could be.
Guy 1: "Hey are you going on that camping trip next weekend?"
Guy 2: "I don't know if I want to go man, it sounds fun and all but Tom and his new girlfriend are going and they kind of sketch me out."
When a person, place, or thing embodies such a high level of shadiness that it cannot be contained under the label of a mere single 'sketch' but rather a 'sketch, and then some'.
"I have no idea where I'm driving to. Matt's directions are sketch-and-a-half."