Pronunciation: (chok'u-blok'), [key]
1. extremely full; crowded; jammed: a room chockablock with furniture and plants.
2. Naut.having the blocks drawn close together, as when the tackle is hauled to the utmost.
in a crowded manner: books piled chockablock on the narrow shelf. Also,chock'-a-block'.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.