just (one's) cup of tea
Precisely that which one prefers, desires, enjoys, or cares about. I've never enjoyed boring intellectual dramas, but a gore-filled monster movie? Now that's just my cup of tea. It sounds pretty boring to me, but postmodern literature is just Mary's cup of tea, so I bet she'd be interested in going with you.
Farlex Dictionary of Idioms. © 2024 Farlex, Inc, all rights reserved.