A sniglet is a type of neologism popularized by comedian Rich Hall during his tenure on the 1980s HBO comedy series Not Necessarily the News. Each monthly episode features a regular segment on sniglets, which Hall described as "any word that doesn't appear in the dictionary, but should." Possibly originating in a game devised by author Douglas Adams and British comedy producer John Lloyd, sniglets were generated and published in significant number, along with submissions by fans, in several books, beginning with Hall's Sniglets, Sniglets for Kids, and More Sniglets in the mid-1980s.

In 1984, a collection of sniglets was published by Hall, titled Sniglets (snig' lit: any word that doesn't appear in the dictionary, but should). This was followed by a "daily comic panel" in newspapers, four more books, a game, and a calendar. Many sniglets are portmanteau words, a comedic style often traced to Lewis Carroll.

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