cocoa-nut
Preserved but no longer current.
The head. A pugilistic term. Also, when anything is explained to a man for the first time, it is not unusual for him to say, "Ah, that accounts for the milk in the cocoa-nut"—a remark which has its origin in a clever but not very moral story.
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 “cocoa-nut” mean?
The head. A pugilistic term. Also, when anything is explained to a man for the first time, it is not unusual for him to say, "Ah, that accounts for the milk in the cocoa-nut"—a remark which has its origin in a clever but not very moral story.
Is “cocoa-nut” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.