Board Thread:DC's Legends of Tomorrow discussions/@comment-9346948-20161020212227/@comment-5414004-20161023014748

Kaestal wrote: Then just say Zoom, I mean, don't be afraid to say the name man.

He's not Voldermort, you can say his name without people coming for you. I think Kir just doesn't like the way Zoom was done and so calls him Zooz to mock or ridicule.