The Persian language possesses a robust inventory of profanity ( fohsh ), much of which derives from the semantic fields of genitalia, sexual acts, and bodily functions. Among these, kos o kon kardan stands out because its literal components— kos (vulva/cunt) and kon (present stem of kardan , "to do," but also a noun meaning "fucking" in this compound)—combine to form an idiom that rarely describes actual sex. Instead, speakers use it to denote .
This refers to the modern dating scene (often called "Situationships"). Traditional "Kos o Kon" was about marriage or serious dates. The "New" version involves sending voice notes, ghosting for three days, and then liking an old Instagram story. Persian Twitter memes define this as "Vaziyat-e bi soboote jadid" (The new unstable situation). kos o kon kardan new