In the Penguins episode “All Choked Up,” Skipper says the following:
Blowing us up one by one with unregurgitatable gut bombs.
Except that “unregurgitatable” isn’t a word. “Irregurgitable,” however, is. Interestingly enough, only the OED lists it under “regurgitable.” Sadly, it has use in academic works equal to that of the non-word “unregurgitatable.” Why invent a word when there’s already a perfectly good and more logical word?