the act of taking a female from behind at a rapid pace...so rapid that your penis makes a full exit and inadvertantly, unexpectedly, and uninvitedly enters her balloon knot.
We were having sloppy drunking doggy sex when I totally misfired. She wept and then dumped me.
What happens when you zone out and forget to do something or do something a different way, usually because of being high on marijuana . often due to falling into an automated pattern while doing something. ie. Driving to somewhere along the same route you drive to work everyday, but zoning out and just driving to work.
Murphy was so ripped after that chute session, that he misfired on the way home hardcore. We ended up at Dave's place.
When you are busting the fattest of nuts onto your girl/guy or a tissue or whatever and you completely miss, either hitting random objects in the room(forcing you to clean up shit) or even yourself.
Person 1: Uhhh, dude, why is the carpet sticky?
Person 2: Right. I had a misfire while jacking and nutted all over it.
Person 1: What's that on your forehead?
Person 2: I uhhh, I misfired and hit myself.
Person 1: Hahaha, you fucking gave yourself a facial!