"zeub la bite" is an alteration of french youtuber seb la frite's name.
"Seb la frite" means
-> Seb (sebastian) the frie (french fries).
The alteration "Zeub la bite" means
-> Cock the dick
>you prefer seb la frite or zeub la bite ?
>i am leaving you
Big COCK
a french word to express a dick but in a funny way
il a un gros zeub celui-là (this one has a big ass cock)