A very catchy sweet term of exclamation used in the movie CLUELESSby Alicia Silverstone's character Cher, its not dismissive just clever acknowledgment
Of course we are going to SEX AND THE CITY ,,,TSCHA now get dressed...sexy..!!
a breathy, sensual exclamation, invented by MJ. usually no louder than a whisper.
Ryan "Hey Raul did you fuck that girl?"
Ryan "Big tscha"