English Dictionary

horse of a different color

noun

(American spelling, idiomatic) An unrelated or only incidentally related matter with distinctly different significance.

She always wears unique and colorful outfits. She's definitely a horse of a different color.

意味（1）

(American spelling, idiomatic) An unrelated or only incidentally related matter with distinctly different significance.

Against physical danger I am willing to offer myself at any time to your Highness . . . . But to walk straight into jail, with my eyes open, that's a horse of a different color.