i ain't holding back - You're not holding back because you're too busy being a jerk

You're not holding back because you're too busy being a jerk and you don't care if people throw stuff at you.

I told my friend his joke was the worst since the invention of bad puns.

I said my crush was a walking disaster and he still asked me to hang out.

I told my teacher he was a bad singer and he still made us sing in class.