Bish Share definition Flag «Bish» or «bich» Means «friend»(girlfriend). It’s slang, and it’s cooler than «friend»( not the same as bitch bc it is not used against anyone in a negative way). It’s pronounced bish. «C’mon bish , let’s go!» Bish by Bishnr1 October 9, 2018 0 0 Get merch Get the Bish mug. Buy Now — $32.95 See more merch