What (who) is wha-huh - definition

Not Brand Echh is a satiric comic book series published by Marvel Comics that parodied its own superhero stories as well as those of other comics publishers. Running for 13 issues (cover-dated Aug. 1967 to May 1969), it included among its contributors such notable writers and artists as Stan Lee, Jack Kirby, Gene Colan, Bill Everett, John and Marie Severin, and Roy Thomas. With issue #9, it became a 68-page, 25¢ "giant", relative to the typical 12¢ comics of the times. In 2017, a 14th issue was released.

Its mascot, Forbush Man, introduced in the first issue, was a superhero wannabe with no superpowers and a costume of red long johns emblazoned with the letter "F" and a cooking pot, with eye-holes, covering his never-revealed head. His secret identity was eventually revealed in issue #5 (Dec. 1967) as Irving Forbush, Marvel's fictitious office gofer.