noun
cucumber sushi roll; kappa maki
A type of makizushi (rolled sushi) filled with cucumber strips, wrapped in nori. The name comes from the mythical kappa's supposed love of cucumbers.
See also: 巻き寿司
回転寿司でかっぱ巻きをよく注文します。
I often order cucumber rolls at conveyor-belt sushi restaurants.
かっぱ巻きはさっぱりしていて
Cucumber rolls are light and refreshing, perfect as a palate cleanser.
From かっぱ (kappa, a mythical water creature) + 巻き (maki, roll). Named because kappa are said to love cucumbers, the main filling of this sushi roll.