Mine is jabroni. It gets used to describe jabronis, obviously. But it also gets used in the car to describe bad drivers, so I don't have to swear in front of my kid. But now my six year old will just say "dad there's so many jabronis out here" and I feel warm and complete inside.
From Mac Day:
It's probably the darkest reference that I've made on the regular, and I don't even mean to do it.