TBIIYP Share definition Flag Abbreviation for "Too Bad it is Your Problem". Commonly used in response to "not my problem." Girl 1: Crap! I got my period!!! Girl 2: Not my problem... Girl 1: TBIIYP...im wearing your shorts :) TBIIYP by lizbrez March 1, 2009 0 0 Get merch Get the TBIIYP mug. Buy Now — $32.95 See more merch
