Slang that has different meaning and it depends on the sentence :
Weirdo , Stupid , Hipster , Crazy , Psycho , Someone who likes stupid things to do
Koset khole ? (=Are u crazy ?)
Kos kholo nega :/ (=Look at that weirdo)
Amu i kosesh khole (=Bro this dude is stupid)
Kos ke khol bashe , kun dar azabe (= When someone is Koskhol , U dont have to take him/her serious )
Slang with different meanings such as :
Binamus , Bitch , Koskhol , And mostly Traitor .
it is also used to show love between boys .
Lashi shodia ? dige pa nemidi ( = U got Lashi , u dont fuck with us no more )KoseNanat