 Others were created after the name became popular for this purpose, and were named to take advantage of the term.The grocery store chain, Trader Joe's uses "Joe's Diner" as its imprint for certain store brand frozen entrees.The corresponding expression, "Eat at Joe's", was a frequently-used gag in the Warner Bros. and MGM cartoons during the 1940s, typically used when an image of a neon sign or other complicated tubing would appear.