cut-in

(broadcasting) a local announcement inserted into a network program

(film) a still picture that is inserted and that interrupts the action of a film

allow someone to have a share or profit

drive in front of another vehicle leaving too little space for that vehicle to maneuver comfortably

break into a conversation

• “her husband always chimes in, even when he is not involved in the conversation”

interrupt a dancing couple in order to take one of them as one''s own partner

• “Jim always cuts in!”

mix in with cutting motions