fish horn, noun phrase
In historical contexts. The small horn used in the past by Cape Town fish-vendors to cry their wares. Also attributive. See also fish-cart.
1871 W.G. Atherstone in A.M.L. Robinson Sel. Articles from Cape Monthly Mag. (1978) 80What sound is that, like a cracked fish-horn with a very bad cold?
1986 Fair Lady 16 Apr.As the sound of the fish horn came nearer, they rushed..to the front gate to await the arrival of the little cart and horse.
The small horn used in the past by Cape Town fish-vendors to cry their wares. Also attributive.