How to translate "もしかしてそのスーシおニュー？"?

Question

I'm attempting to translate something but this sentence is confusing me.
It's the "お" and "スーシ" that I don't understand. I hope this isn't too dumb of a question..

Answer 1

ツ ≠ シ

ツ ≒ つ and シ ≒ し.

「スーシ」 is how many non-Japanese people pronounce 「すし」.

Jokes aside, the word you saw would probably be 「スーツ」 instead of 「スーシ」.

「スーツ」 means a "suit", the clothes.　「スーシ」 does not exist. 　

「おニュー」 is a comical way to say "brand-new" or just "new".　「お」 is the honorific prefix for politeness. This is a very exceptional usage of 「お」.

"Is that a brand-new suit by any chance?" would be my translation.

Come back if that does not make sense for the context.

Related: How to understand チラツ