chock-a-block
adjective (especially British English) [not before noun] (informal)- chock-a-block (with something/somebody)
very full of things or people pressed close together 充满；挤满；塞满 The shelves were chock-a-block with ornaments. 架子上堆满了装饰品。 It was chock-a-block in town today (= full of people). 今天城里人多得不得了。
Word Originmid 19th cent. (originally in nautical use, with reference to tackle having the two blocks run close together): from chock (in chock-full) and block.