Jisho

×
うし
Expressions (phrases, clauses, etc.), Godan verb with 'ru' ending
1. do not go lie down after eating (because it is considered rude); if you lie down soon after eating, you will become a cowProverb
Other forms
食べて直ぐ寝ると牛になる 【たべてすぐねるとうしになる】

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