no; that's wrong; it's not like that
Kansai-ben interjection used to reject or correct what someone has said; roughly standard 違う or いや、違う. Often repeated as ちゃうちゃう for emphasis.
"That's Mr. Tanaka, right?" "No, it's Mr. Yamamoto."
Kansai-ben confirmation expression, often sentence-final after a noun or predicate, like standard じゃない？ or でしょう？ depending on context.
This is your umbrella, isn't it?
No, no, that's not it at all.
No, no, that's not what it means.
The meeting time tomorrow is eight, isn't it?
これ、あの人の傘ちゃう？
Isn't this that person's umbrella?
A Kansai-ben form corresponding in meaning to standard 違う in the corrective use and to a negative confirmation form in the tag-question use. No kanji or historical derivation is specified.