List of words coined in popular culture

Modern languages have vocabularies that are derived from diverse backgrounds, and improper nouns do occasionally enter popular usage simply because they have been created or re-used in a meaningful way by a sufficiently popular show, performer, group, or website. A word created in popular culture will often be a neologism, but this is not always the case.

Websites
Wiki: Wikipedia

TV Shows
Cromulent: The Simpsons

Embiggened: The Simpsons

Comic Strips
Malamentau: xkcd

Literature
Grok: Robert A. Heinlein Otaku: Manga Burikko