- a torpedo.
Origin of tin fish
First recorded in 1915–20
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for tin fish
"Now Fritz can use his tin-fish as often as he likes," he thought gleefully.The Thick of the Fray at Zeebrugge
Percy F. Westerman