それはない

expression

you must be kidding; hey, come on!; surely not!

An exclamation used to express strong disbelief, objection, or disappointment, often in response to an unreasonable statement or situation. Casual and conversational.

• 「明日あしたまでに100ページのレポートを書かいて」って、それはないよ。

  "Write a 100-page report by tomorrow" — you must be kidding!

• え、また値ね上あげ？それはないでしょ。

  What, another price hike? Come on, surely not!