Best definition
When someone is such a bitch, the word “bitch” and the second-person word “you” become one word, with emphasis placed

on the word “you”.Also works if someone does something or makes a bitchy decision.

John: Got any big dawg juice?

Lennon: Nope.

John: Yubitchyu.

Bob: What’s up?

Dylan: Shut the hell up.

Bob: You bitch you.

Jimi: Hey girl, lookin’ fine!

Dolly D: You have a small dick.

Jimi: Yubitchyu.