“Mon truc en plumes” is a French phrase that translates to “my thing in feathers” in English. The expression is somewhat colloquial and can refer to an item or a style that features feathers, but the context can vary widely. It might be used to describe a fashion accessory, a costume, or even a decorative item that incorporates feathers. The phrase can also carry a more figurative meaning, suggesting something that the speaker is particularly fond of or proud of, akin to saying “my favorite thing” or “my signature style.”
If you have a specific context in mind where you’ve encountered this phrase, I can provide a more tailored interpretation!