haibai
A rude way to say both 'Hi' and 'Bye' all at once. Use it when you're being extra annoying and don’t care if the other person is confused or mad.
Haibai, you idiot. I’m leaving before you even start talking nonsense.
I just said haibai to my mom. She’s gonna yell at me for the rest of the day.
My crush texted me, and I replied with haibai. Now I’m gonna regret it forever.