When Judd’s student lied about having completed his homework, Judd schlanked him to death.
I schlanked your father in an attempt to get the money he owes me, but unfortunately he liked it.
What exactly the term means remains unclear, and in fact, its very likely it means absolutely nothing at all.
The conclusion here is that the word was most likely coined by Hippy while he was Chewbaccin' (completely fucked, only able to mutter and grunt incoherent and vaguely Wookie-ish sounds). It seems he fluked the word 'schlank', and upon someone else having to recount the previous night's events, he decided he enjoyed the word and began using it to randomly replace other words in sentences.
Its most recognized form is an adverb in sentences organizing or describing being fucked up.
"Those pills any good cunt?"
diapilated eyes, idiot grin "Fuck yeah bro I'm schlanked"
While cruising down the Valley on the back of a street sweeping machine after getting kicked out of the Mustang: "HAHAHA SCHLANKITY SCHLANK!"