The word stems from the often misspelling of the word 'gay' as 'fay' and the acceptance.
Wow, you're quite a fayt.
That's just fayt.
2: Consuming large quantities of food and sitting around doing nothing.
3: Almost anything that has to do with not loosing weight
4: Eating terrible food just because its cheap and there's alot of it
Fayt Man #2:MMMMMMMMmmmmmm yea I know! Its helping my stamina! Come to my office and I'll show you the ways.
Fayt Man #1:Hmm? Ohh alright. . . . .That's a long fucking walk though.