Internet
rule 63
What does rule 63 mean?
An internet adage stating that for any given character there exists an opposite-gender counterpart; widely used to label gender-swapped cosplay and fan art.
"His Rule 63 Link cosplay leaned all the way into the redesign."
Origin
Coined mid-2007 as part of the 4chan 'Rules of the Internet'; Urban Dictionary entry dates to August 2007.
Frequently asked questions
What is Rule 63?
It's an internet adage stating that for any given character there exists an opposite-gender counterpart, used to label gender-swapped cosplay and fan art.
Where did Rule 63 come from?
It was coined in mid-2007 as part of 4chan's 'Rules of the Internet,' with an Urban Dictionary entry dating to August 2007.
How is Rule 63 used in cosplay?
Cosplayers tag a gender-swapped take on a character as 'Rule 63,' signaling it's a deliberate opposite-gender reimagining.
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