蚕かいこ棚だな

noun

silkworm growing-bed; silkworm shelf

A rack or shelf used in sericulture for rearing silkworms. A specialized term likely encountered in historical or agricultural contexts.

• 養よう蚕さん農のう家かでは、蚕かいこ棚だなに桑くわの葉はを並ならべて蚕かいこを育そだてていた。

  At silkworm farms, they used to raise silkworms by placing mulberry leaves on silkworm shelves.

noun

bunk; cramped bedroom

Slang or humorous extension comparing a cramped sleeping space, such as a bunk bed or tiny room, to a silkworm shelf. Informal and somewhat dated.

• 寮りょうの部屋へやはまるで蚕かいこ棚だなみたいに狭せまかった。

  The dorm room was as cramped as a silkworm shelf.