buttinsky
butt in sky |bətˈinskē bəˈtɪnski | ▶noun ( pl. buttinskies ) a person who habitually butts in; an intruder or meddler.
butt |in ¦sky |bʌˈtɪnski | ▶noun N. Amer. informal an interfering person. ORIGIN early 20th cent.: from butt in (see butt 1 ) and -ski, formed in humorous imitation of the final element in many Russian names.