In issue #86 of 1964, Jaffee created his longest-running "Mad" feature, the Fold-In. In each, a drawing is folded vertically and inward to reveal a new "hidden" picture (as well as a new caption). Originally, Jaffee intended it as a one-shot "cheap" satire of the triple fold-outs that were appearing in glossy magazines such as "Playboy", "National Geographic" and "Life". But Jaffee was asked to do a second installment, and soon the Fold-In became a recurring feature on the inside back cover of the magazine. In 2011, Jaffee reflected, "The thing that I got a kick out of was ... "Jeopardy!" showed a Fold-In and the contestants all came up with the word they were looking for, which was "Fold-In." So I realized, I created an English language word."