buttinsky

1. (derogatory) One who is prone to butt in, interrupt, or get involved where they are not welcome; a busybody.Examples: "I wish I had never met that nosy buttinsky!"; "Well, all right then! If you think I'm a buttinsky, then I'll just butt in!"; ""Shut up, Garrett. I never," said Mr. Tallboy, extricating himself from Garrett's grasp and giving him a playful punch in the wind, "in my life, met with such a bunch of buttinskis as you are in this department. Nothing is sacred to you, not even a man's business correspondence.""Synonyms: butterinsky, kibitzer, meddler, nosey parker, stickybeak, yentaderogatoryinformal

2. (telecommunications) A robust portable one-piece telephone instrument with clips, used by technicians and lines staff for testing telephone circuits or making a temporary connection to a telephone line.Synonyms: butt setinformal