物もっ相そう飯めし

noun

single serving of rice (prison food)

Strongly associated with prison slang; refers to a single portion of rice served in correctional facilities. Rarely used outside that context.

• 刑けい務む所しょでは、毎まい食しょくもっそうめしが出だされる。

  In prison, a single serving of rice is provided at every meal.