Meanings
- InternetinformalslanglifestyleThe proposition that it is possible to find genderswapped versions of every fictional character, especially as fan art on the internet.
Synonyms & antonyms
Origin
Rule 63 was first introduced as part of the expanded edition of Anonymous’ Rules of the Internet, most likely published in the summer of 2007, based on Google Insights. The Urban Dictionary entry for “Rule 63” was first submitted by user InternetHateMachine on August 8th, 2007.
Full word history & related roots →Cite this entry
Rule 63. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/Rule%2063
“Rule 63.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Rule%2063. Accessed November 4, 2026.
WatkinsX Dictionary, s.v. “Rule 63,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/Rule%2063.
Source: Rule 63 on Wiktionary, CC BY-SA 4.0.