rish bish Share definition Flag rich bitch or can be shortened to rish and still mean the same thing 1. oh my god, she's such a rish bish, do u see her clothes? 2. oh my god, she's such a rish, do u see her clothes? rish bish by Superb037 December 30, 2008 0 0 Get merch Get the rish bish mug. Buy Now — $32.95 See more merch