Definitions by therealhelmetwearer

kerfat

The sound you make collapsing onto furniture after eating too much

"Oh that extra large extra cheese pizza was tasty" *kerfat*

When you stop working out, start eating like total crap, and all your hard earned muscle turns into fat.

I was able to do 1000 pushups a day like a chad, but after 2 weeks of fatrophe and now I can barely lift my McDonalds to my mouth.