たべほうだい
all-you-can-eat; eating as much as one likes
Noun
さあ、みんなで食たべ放題ほうだいの焼やき肉にく屋やさんに行いこうよ。
Let's all go to an all-you-can-eat Yakiniku restaurant.
先週せんしゅうはパチンコで勝かった友人ゆうじんに焼やき肉にくをごちそうになりました。食たべ放題ほうだいでたらふく食たべました。
Last week I was treated to dinner by my friend who'd won at pachinko. It was all-you-can-eat so I ate to my heart's content.