Are on the door - Idioms by The Free Dictionary
be on the door (redirected from are on the door)
be on the door
To be stationed at the entrance to a venue or event. I forgot my ID—do you think the guy who's on the door will still let me in?
be on the ˈdoor work at the entrance to a theatre, club, etc., for example collecting tickets from people as they enter: We should be able to get in free because I know the guy on the door.