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cooked rice
food; meal
「御飯」 has another reading with different meanings.
おまんまの食い上げくいあげになるぞ。
You'll lose your livelihood, you know.
おまんまを食べたべてから出かけでかけなさい。
Eat your rice before you go out.
こんな仕事しごとじゃおまんまにありつけないよ。
With a job like this, I can't even earn my meals.