It's short for Dances With Fat, a blog run by hamplante named Ragen Chastain. She frequently makes "fat doesn't affect your health at all!" posts, and claims to be a national award winning dancer even though she's 300+ lbs. and never really won a real competition. She likes to waddle her way to completing a race and use it as evidence that hams can be athletes. She tried competing in a half-Ironman last fall, of which she couldn't even complete the first section and was disqualified. Now she claims to be training for a full Ironman. Her blog is just chock full of hamminess and utter refusal to take responsibility that she eats too goddamn much. Amazingly she has a partner even fatter than her who depends on a mobility scooter.