Britch Share definition Flag One of your bros, that is also a bitch. You drive a Prius? Wow, you're such a britch.Go bag my groceries, you Jewel Osco britch.Nice full-tilt hat, britch! Britch by BDaleBoy October 21, 2010 0 0 Get merch Get the Britch mug. Buy Now — $32.95 See more merch