it means talking bullshit in persian (farsi). and is mostly used by the younger teen generation in iran, and is equivalent to a "shut uppp" in english.
goodarz: "bro i swear hannaneh is telling some kos-o-sher to her bestie haniyeh!"
mohsen: "don't worry about it bro she'll come to her senses.
mohsen: "don't worry about it bro she'll come to her senses.
by Ariashahanshah April 7, 2022

Kose o share or kose share or kos-share is a persian slang which literally means pussy and poem but figuratively means bullshit.
People use it mostly when someone exaggerating something
People use it mostly when someone exaggerating something
by Mayar Tahsil kardeye khiabuni August 26, 2021


Pull.....BAM BAM BAM
by The Wangsta February 25, 2003

by Henry king James February 15, 2023

Kill ourselves
Jeremy: well what are we gonna do about it now?
John: we should just kos and leave this piece of shit
John: we should just kos and leave this piece of shit
by Sjdjsjsjks September 2, 2017
