てやんでえ

interjection

what the hell are you saying!?

A rough, old-fashioned Kantō dialect interjection used to express strong disbelief or to challenge what someone just said. Derived from 何を言ってやがるんだい. Has a vulgar, Edo-period townsman flavor; often associated with べらんめえ口調.

• 「てやんでえ、そんな話はなしがあるかよ！」と彼かれは怒ど鳴なった。