Yeat comes from a small, coastal, New England city.
Legend has it, on foggy days, the fishermen returning to port would yell "yeat" to other boats, to let them know where they were. (Kinda like, Marco Polo).
To this day, people in this town use the word yeat, with a couple meanings.
It could mean; "hey, how's it going?", or, "go F yourself" (specifically if you say, "yeat da bun")
I am "yeatster". The one who yeats
YEAT!