Top Definition
Smoking an electronic cigarette, another term for vaping. A description of the continuous puffing action used by E-cigarette users. Akin to the mindless constant chewing action of a Koala, and their stoned appearance.
I'm just going outside for a quick Fupp, anyone want to join me?.

Where is Dean? He's outside Fupping
by Alf from Home & Away November 27, 2013
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