Meanings
nounblue flu (countable and uncountable, plural blue flus)
plural blue flus
- countableinformaluncountableAn industrial action taken by members of the police, claiming sickness en masse.
Origin
In reference to blue police uniforms.
Full word history & related roots →Cite this entry
APA
blue flu. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/blue%20flu
MLA
“blue flu.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/blue%20flu. Accessed November 2, 2026.
Chicago
WatkinsX Dictionary, s.v. “blue flu,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/blue%20flu.
Source: blue flu on Wiktionary, CC BY-SA 4.0.