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."
A very dirty hippie often smelling of patchouli and body odor. Wooks will almost always have natty dreadlocks and a full beard. They usually wear Mexican Ponchos or all natural hemp clothing with patchwork corduroy pants. Usually a good source for dank nuggets.
"I don't want that w00k in my car. It'll smell like a day old Phish show in here."
One who is severely sketchy, odd, or suspicious. Can also be used interchangeably with the adjectives sketch, skeevy, etc...
"That junked out w00k is a skeevtron."
(v.) to be quite blazed
"Smoke weed and be lean." ~The Streets