Something someone does sometimes to delay doing the right thing for as long as he can, for whatever reason.

When instead of wearing a condom you just pull out and splurge all over the girls back when you are about to cum.
Also that thing that they told you not to do in sex Ed but only bitches don't

when you're doing someone from behind and just as you are about to bust, you pull out and jizz on their face

when someone tries to act intimidating but in reality is weak.

Richie molitor

When you excuse yourself quickly you use this expression.

Basically, you're stupid and/or annoying, and your existence is an embarrassment and a disgrace to humanity.

Literally: If your dad had taken his penis out of your mom's vagina before ejaculation on the night you were conceived, you would not have been born and thus he would have saved the world the trouble of dealing with you.