ETYM French choquer. Related to Shock.
1. To secure with chocks.
2. To support on chocks, as of boats, for example.

(Homonym: chalk).
As completely as possible; SYN. chock-a-block.

Metal casting with curved arms for passing ropes for mooring ship.
A block of wood used to prevent the sliding or rolling of a heavy object; SYN. wedge.