1670s, "lumpy piece of wood," possibly from Old North French choque "a block" (Old French ?oche "log," 12c.; Modern French souche "stump, stock, block"), from Gaulish *tsukka "a tree trunk, stump."
chock (adv.)
"tightly, close up against," 1799, back formation from chock-full.
例文
1. The small roads are chock -a-block with traffic.
この小道はすべて車馬歩行者でいっぱいだ。
2.The shelves were chock -a-block with ornaments.
棚にはアクセサリーが山積みになっている。
3.The 32-page catalog is chock -full of things that add fun to festive occasions.
32ページのディレクトリは祝日のお祝いをレンダリングするものばかりです。
4.The train was chock -full of travellers.
列車は旅客でいっぱいだ。
5. The town centre was chock - a - block ( with traffic ).