flippin flapjack Share definition Flag A substitute for the overly used phrase Freakin' A! Also means holy h*ll, holy f*&k, etc. Flippin flapjack! Thats a big body of water. flippin flapjack by Blair73 June 18, 2008 0 0 Get merch Get the flippin flapjack mug. Buy Now — $32.95 See more merch