Nautical. having the blocks drawn close together, as when the tackle is hauled to the utmost.
adverb
3.
in a crowded manner:
books piled chockablock on the narrow shelf.
Also, chock-a-block.
Origin
compare chock close (up to), apparently as back formation from chockful
Examples from the web for chockablock
The website is chockablock full of book recommendations and authors that appeal to boys of all ages.
It's a popular vacation spot, chockablock with beachwear shops, nothing-fancy hotels and weathered houses.
There are mean and crazy people, and academia's chockablock with them.
The blogosphere is chockablock with comparisons, however.
Each weekend's schedule is chockablock with music and food options, and there's only so much time in a day and room in a stomach.
Most shelter magazines are chockablock with color pictures that bleed off the page, which invites flipping.
It's chockablock with features, options and related tools, some of which are only tangentially related to e-mail.
We're chockablock this time of year with super-fun wintery shows, arts happenings, and music all over town.
Slang definitions & phrases for chockablock
chockablock
adjective
Crammed; crowded full: The plays and stories are chockablock with figures
[1840s+ Nautical; fr a nautical rhyming phrase used to mean that the two blocks of a block and tackle are touching after the device has been tightened to its limit]