可不是吗

可不是嗎
kěbùshìma
  1. (colloquial) you can say that again; absolutely; that's very true
  2. you can say that again; absolutely; that's very true

Wiktionary

Entry Composition

=1 可不是 kěbushì (coll.) exactly!; indeed; that's for sure
=1 可不是 kěbùshì
  1. Used as an emphatic affirmative reply: indeed; right
  2. Used other than figuratively or idiomatically: see 可, 不, 是 (shì).
2 吗 ma (question particle for "yes-no" questions)