be another kettle of fish
another kettle of fish
Any issue or matter that is entirely different in scope, description, or nature from that which was just being discussed. A: "So you like your first two roommates, but what about your third one?" B: "William? Oh, he's another kettle of fish altogether." I suppose we should start looking at buying a house now that our baby is on the way, but that's another kettle of fish!
be another kettle of fish
To be entirely different in scope or description from someone or something that was just being discussed. A: "So you like your first two roommates, but what about your third one?" B: "William? Oh, he's another kettle of fish altogether." I suppose we should start looking at buying a house now that our baby is on the way, but that's another kettle of fish!
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.