The action of boarding an aircraft ( System wise) by allowing passengers through boarding scanners and subsequently, placing them on the Jet Bridge / Jetty, without actually letting them on board.
American Airlines TEAM Dusseldorf solution to uncooperative Crew Members.
The Crew is not yet ready, lets Jet bridge!
CREW : You are not allowed to start boarding yet
Answer: We are not Boarding, we are Jet Bridging.