Californiaprison slang for your homie you hang out with on the yard, also called an ace deuce, your right hand man. Yard dogs also refer to the fucked up shoes you wear to yard to work out in, as opposed to your nice one you wear to chow or day room.
Me and my yard dog Duke stomped that chomo out. Or ; Hey you know anyone on the tier with some yard dogs for sale?
Another word for squirrels at the US Naval Academy (instead of prairie dogs). Rumor has it, if a plebe catches a yard dog, plebe year ends for the entire class.
After she blew Q-Town on the side of the house, Schreindogg yard dogged the shit of her right there by that tree. I guess thats how he got his nickname.