物もっ相そう飯めし

も

っ

そ

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め

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Meanings

1

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.

thing, object, matter

相inter-, mutual, together

飯meal, boiled rice

Similar words

飯めし
飯 is the general word for a meal or cooked rice; 物相飯 specifically refers to a prison rice serving.
一いち膳ぜん飯めし
一膳飯 also means a single serving of rice, but lacks the prison connotation of 物相飯.

Etymology

The exact derivation is uncertain. 物相 may refer to a container or a measure, and 飯 is 'rice', together suggesting a measured portion of rice, historically associated with prison rations.