Slang Abbreviation.
Spliced from the four common vernacular words " Did you eat yet?"
Used mostly in New York City and surrounding burroughs and neighborhoods of New Jersey.
Variatons Have been found to reach as far west as central illinois.
Tony: YO frankie, how youz doin?
Frankie: Ehh, I got theez rumbles, Dijeetjet?
Tony:Nah, lets go get a Stromboli.
Pittsburghese. A smashed-up version of "Did you eat yet?" Would not be notable other than for the fact that I've actually seen this phrase, written just this way, in local restaraunt advertisements surrounding Pittsburgh.