blue bottle
Preserved but no longer current.
A policeman. This well-known slang term for a London constable is used by Shakspeare. In Part ii. of King Henry IV., act v. scene 4, Doll Tearsheet calls the beadle, who is dragging her in, a "thin man in a censer, a BLUE-BOTTLE rogue." This may at first seem singular, but the reason is obvious. The beadles of Bridewell whose duty it was to whip the women prisoners were clad in blue.
Era: ca. 1874 (Victorian)
Sources & notes
Historical definition reproduced from Hotten’s The Slang Dictionary (1874, public domain; Project Gutenberg #42108, retrieved 2026-07-31). Reflects the attitudes of its era.
Common questions
What does “blue bottle” mean?
A policeman. This well-known slang term for a London constable is used by Shakspeare. In Part ii. of King Henry IV., act v. scene 4, Doll Tearsheet calls the beadle, who is dragging her in, a "thin man in a censer, a BLUE-BOTTLE rogue." This may at first seem singular, but the reason is obvious. The beadles of Bridewell whose duty it was to whip the women prisoners were clad in blue.
Is “blue bottle” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.