A fork of Rural Dictionary
The act of throwing up so violently the person is yelling at the same time.
Bro 1- You were so drunk last night.
Bro 2- I know I yarffed all over the bathroom.
To not only throw up, but to do it with a terrible yelling sound. If done properly yarfing will cause veins to pop out and eyes to water.
That swamp donkey just made me yarf all over the place!