1 definition by on_a_boat

Top Definition
phf
Potentially-Hot-Fatty.

A very obese person who has the potential to look good after major weight loss. Most commonly seen on the NBC show "The Biggest Loser".
Jill: Wow! Mike Morelli looked great at the Biggest Loser Season Finale! I never would have guessed it before he lost the 200lbs.

Sarah: Really? I knew he was a phf the second he stepped foot on the ranch.
by on_a_boat June 07, 2009

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