hai ca da
A mean and funny way to tell someone they’re not telling the truth or not going to do what they said. It’s like giving them a slap with your words.
You said you'd finish your math test. Hai ca da? I saw you drawing cats on it.
He said he'd help me move. Hai ca da? He brought a couch and left.
She said she'd come to my concert. Hai ca da? She was at the mall with her mom.