look up any word, like fleek:
 
1.
Strong as fuck, physically and mentally. Crazy willpower & likely shredded.
"Fuck out the way! You ain't thark."

"Look at this guy. Dude's thark as hell."
by Thark Tarkas February 12, 2013
 
2.
To fall down because your pants are too low
Pull your pants up so you don't thark
by papa max January 14, 2011