A chem teacher who wears Hawaiian shirts on Thursdays, likes puns, and occasionally tells long stories that either end with a pun or relate to a chem topic (or both).
Note a koker will use peanut butter sandwiches as a simile for almost all types of bonding.
(Jonah walks into chem class with a Hawaiian shirt on Thursday)
Grant “your such a koker”
It's persian (farsi) for Pimp but it has taken another tone in a common vocabulary. It can be used to replace fucker, asshole, buddy, bro. It all depends of how you use it. It can be a friendly word or a very nasty one depending to the way it is used. It's as powerful as the word fucker.
example 1 :
hey koskesh, you were supposed to call me what happened?
example 2:
that koskesh will get what he deserves
example 3:
Don't do business with that koskesh, he would sell his own mom for a buck