N3 — outside your level filter

放題ほうだい

ほうだいhoudaiN3neutral

drink + as much as you like — no limit on how much you do

nomi houdai

as much as you like — no limit on how much you do

meaning: is all-you-can-drink

このレストランは飲のみ放題ほうだいだ。

kono resutoran wa nomi houdai da.

This restaurant is all-you-can-drink. neutral

部屋へやは散ちらかり放題ほうだいで、足あしの踏ふみ場ばもない。

heya wa chirakari houdai de, ashi no fumiba mo nai.

The room has been left to pile up into a total mess, nowhere left to even step. neutral

All examples4

as much as you like — no cap on how many times

このレストランは食たべ放題ほうだいだ。
kono resutoran wa tabe houdai da.
This restaurant is all-you-can-eat. neutral
このカラオケ屋や、二時間にじかん歌うたい放題ほうだいなんだって。
kono karaoke ya, nijikan utai houdai nan datte.
Apparently this karaoke place is all-you-can-sing for two hours. casual
本ほんプランは動画どうがが見み放題ほうだいです。
hon puran wa douga ga mi houdai desu.
This plan is all-you-can-watch for videos. neutral

left to run wild — nobody stopped it, and it shows

部屋へやは散ちらかり放題ほうだいで、足あしの踏ふみ場ばもない。
heya wa chirakari houdai de, ashi no fumiba mo nai.
The room has been left to pile up into a total mess, nowhere left to even step. neutral

放題ほうだいなhoudainacolloquial
飲のみ放題ほうだいな
な instead of の before a noun, in casual speech — 食たべ放題ほうだいな店みせ.