de quoi je me mêle

what am I sticking my nose into?

→ de
phrase Rare #48,221
what am I sticking my nose into? Often used as a rhetorical question expressing that someone should mind their own business or that the speaker is getting involved where they shouldn’t.
FR: De quoi je me mêle ?
EN: Why am I sticking my nose into this?

De quoi je me mêle ?

What business is it of mine?

— Le Château ambulant (2004)

De quoi je me mêle !

What's it to me?

— La Haine (1995)

De quoi je me mêle.

Mind your own business.

— Delicatessen (1991)

Mais de quoi je me mêle ?

But what business is it of mine?