buttinsky

• buttinski

From butt in (“to interject”) +‎ -sky, humorously modeled after Russian names, early 20th c.

buttinsky (plural buttinskys or buttinskies)

1. (informal, derisive, Canada, US) One who is prone to butt in, interrupt, or get involved where they are not welcome.
   • 1922, Sinclair Lewis, “20”, in Babbitt:

     "Well, all right then! If you think I'm a buttinsky, then I'll just butt in! […] "

   I wish I had never met that nosy buttinsky!

1. (telecommunications) (usually buttinski) 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.

• (one prone to butt in): busybody, backseat driver, kibitzer, meddler

• gatecrasher, interloper, peeping tom, persona non grata, encroacher, nosy parker, marplot, intruder

• butt in