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all-you-can-eat; eating as much as one likes
食べたべ放題ほうだいのレストラン。
An all-you-can-eat restaurant.
食べたべ放題ほうだいのプランにしよう。
I choose the buffet.
食べたべ放題ほうだいのお店みせが大好きだいすきです。
I like buffets.