v. 25B6; verb ENQUIRE IMPERTINENTLY, be inquisitive, be curious, poke about/around, ferret (about/around), spy, be a busybody; eavesdrop, listen in, tap someone's phone, intrude; informal stick/poke one's nose in/into, be nosy, nose, snoop; Austral./NZ informal stickybeak.
mind one's own business.