When you and your friends have watched roll models too much and you start talking in old english. but then it just turns into adding "eth" at the end of every word. hence forth... the reply, yeseth. like saying yes, only a lot more funny for some reason.

Internet persona(s) who happens to follow you and you happen to follow them back and maintain communication with and have a mutual liking for eachother whether it be friendship wise, etc. (Mutuals if more than one mutual)