KMIT Share definition Flag From Yiddish, this acronym stands for "Kish Mir Im Tokhes". A way to tell someone off that you dslike. You didn't like that concert that I paid for you to attend? Well, KMIT! KMIT by pentozali November 8, 2005 0 0 Get merch Get the KMIT mug. Buy Now — $32.95 See more merch