Top Definition
The action of projecting vomit in a linear intense stream.
"It looks like someone power-barfed into a shot glass"
by Mike Regina October 16, 2007
To vomit up an energy bar during strenuous physical activity.
I just did a powerbarf and the top of that hill. I think it was the peanut butter chocolate chip with vanilla icing!
by Mark Shackelford April 24, 2007
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