finna bonk 

When you want to leave or have to go somewhere you would say this in place of got to go or statements to leave.

I said to my friend “I finna bonk our of here it’s getting to warm”.

finna bonk by Kittyfriend January 2, 2020

finnabonk 

that shit can mean anything

"bruh that guys a bitch he finnabonk"

finnabonk by bando2k September 2, 2021