chock-a-block /ˌtʃɒk ə ˈblɒk◂ $ ˈtʃɑːk ə ˌblɑːk/
adjective [not before noun] British English[
Date: 1800-1900;
Origin: chock-a-block 'with the wooden blocks of a tackle (= ropes for lifting) touching each other, so that no more can be lifted' (1800-1900), from chock on block; influenced by chock-full]
completely full of people or things
chock-a-block with
Paris was chock-a-block with tourists. [TahlilGaran] Dictionary of Contemporary English ▲