Mad Dogging Face, or "MDF," is when a male constantly has a pissed off look or scorn expression on his face.
Male equivalent to the female version of Resting Bitch Face, or "RBF."
"That new dude, Sam, at the gym seems cool, but he has MDF. He needs to smile more to break that Mad Dogging Face."
The act of putting mustard and tomato sauce on you dick and proceeding to have sex with someone.
Guy 1: "Hey, are you still dating that maid of yours?"
Guy 2: "Nah, she was a bitch so I gave her The Australian Hot Dog and left"
The act of going ass to mouth while wearing a bomb suit.
After successfully disabling the explosive device, Brent went ass to mouth on his girlfriend. With his balls covered in shit, he announced "you have officially received the first ever, penley dog!"
The sexual act of inserting a phallus shaped piece of poop into her vagina instead of a penis. The bun is the vagina.
She thought we were going out to lunch, but instead I gave her a hot-dog.