Hai vais
A swear word without the swearing. People use it like it means something. It probably means nothing, but it sounds good.
He said, 'Hai vais,' and then threw a chair. I think that was just for effect.
'Hai vais,' she said when she failed the test. That was probably the only thing she could think of to say.
He texted me, 'Hai vais,' and then blocked me. I think that was the worst text ever.