621 en · NOUN · etymology 2
Etymology
A shortening.
Meanings
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(informal, rare, slang, uncountable) The 6-2-1 rule.
621: 6 hours of sleep, 2 meals, and 1 shower every day.
2026, “Code of Conduct”, in AnthroTales 2026: The Solstice Symphony, AnthroTales Board, page 6:While navigating through the stars in the vast expanse of the cosmic con, it's crucial to ensure your health is as boundless as the universe itself! All space travellers have abided by a simple interstellar principle to avoid the dreaded "con-crud"... 621!
2024, Espcetera, “How to Survive Space”, in Furry Down Under 2024: Furbidden Planet, Foundation for Uncharted Realms and Distant Universes, page 11:So if you're confused or you're new, 621 is a rule fursuiters use during cons. But I use my own version called 733, basically here's what it is!
2022 September 16, [Deleted], “Yeah 621 is cool but have you ever heard of 733?”, in r/furry, Reddit, archived from the original on 24 May 2026: