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.
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"That sushi must've been bad, because I feel like yarfing now."
by freddyfals July 10, 2009
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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.
by Yoda December 9, 2004
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Last night i got so drunk, and after i totaly yarfed
by Greg B May 18, 2005
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