haibai
A messy and rude way to say both 'Hi' and 'Bye' in one word. It’s like you’re being extra annoying and don’t care if the other person is confused or mad.
I used haibai in a group chat. Now everyone thinks I’m a total loser.
I said haibai to my crush. Now he’s gonna ignore me for the rest of the day.
My sister used haibai on me. Now I’m gonna yell at her for the rest of the week.