Bye and bitch mixed together to create byech. You can also use byech to say bye bitch to someone thats being annoying and since not a lot of people know what it means they will thing u just are stupid and don’t know how to spell bye. Plural form for bye bitch so bye bitches would be byches.
Eden: Emma your so annoying

Brooke: Emma your stupid
Emma: you know what BYECHES
Eden:Huh
Brooke: did she just bye bitch us?
Eden: is that what that means?
Brooke: ya have u not heard that before?
Eden: WELL IM SORRY BROOKE IF I DONT CHECK URBAN DICTIONARY EVERY 5 SECONDS!
Brooke: BYECH
by EBerky January 22, 2018
Get the Byech mug.