stop up

verb stop up

• blockaded — the isolating, closing off, or surrounding of a place, as a port, harbor, or city, by hostile ships or troops to prevent entrance or exit.
• block — A block of flats or offices is a large building containing them.
• bung — A bung is a round piece of wood, cork, or rubber which you use to close the hole in a container such as a barrel or flask.
• bunged — a stopper for the opening of a cask.
• caulk — If you caulk something such as a boat, you fill small cracks in its surface in order to prevent it from leaking.