When one ejaculates into another person’s butthole, then he/she farts the nut out of her/his butthole onto the one who ejaculated’s face. Making it a moneyshot.

when you're hungover as shit after a spending a night drunk as a skunk

When one nuts in another’s butt hole, then he/she proceeds to nut-fart or blast the nut out of her hole onto the nutter’s face.