a nosy parker

a nosy/nosey parker

  (British & Australian informal)
someone who is too interested in finding out information about other people Tell him to mind his own business, the nosy parker!
See also: nosy, parker
References in periodicals archive ?
So I'm becoming a nosy parker myself by visiting the countryside to see for myself.
They need their feet on the ground, knocking on doors and sometimes being a nosy parker.
Every time we refer to a hooligan, a nosy parker or even a lynch mob, we are using someone's name.