- Johnny one note, Johnny one-note, Johnny One-note, etc.
"Johnny One Note" is a show tune from the 1937 Rodgers and Hart musical Babes in Arms. The lyrics tell a story of a male vocalist named Johnny who sang with a band and could sing only one note, but sang that note extremely well.
Johnny-one-note (plural Johnny-one-notes)
- (idiomatic, chiefly US, Canada) A person (or organization) who often expresses a strong opinion or viewpoint on a single subject or a few particular subjects.
- (idiomatic, chiefly US, Canada) An opinion or viewpoint on a single subject or a few particular subjects which is frequently expressed by a person or organization.
1945 July 9, “The Press: Confessions of a Grouch”, Time, volume 46, number 1:
- Whether his boss (Hearst) had told him to get off his Johnny-one-note of hate toward labor leaders, foreigners and New Dealers, or whether Pegler had decided all by himself to change his tune, no one knew.