A combination of the words floof and chonk. The word is an adjective used to describe either a cat that is both a floof and a chonk, or a cat that is so floofy that it looks like a chonk.
That cheese weiner flonk donk is pissing me off!
Camping ass Cheese weiner flonk donk, I'm going to find your camping ass and shank you with my tactical knife!!!