J-back
When someone says this, you better watch your back because either you're about to get a slap or J-Capp is about to drop a verse and make you feel stupid.
J-back? I'm not even mad, I'm just ready to get slapped.
He said 'J-back' and then J-Capp started rapping about how I'm a failure.
I heard 'J-back' and I knew my day was going to be hell.