看かん板ばんに偽いつわりなし

expression

it's true to its name; it's just like it says on the box

Used when something lives up to its reputation or advertised quality, often in a positive, slightly colloquial way.

• あのラーメン屋やは本ほん当とうに美味おいしい。看かん板ばんに偽いつわりなしだ。

  That ramen shop is really delicious. It's true to its name.

• この掃そう除じ機き、宣せん伝でん通どおりよく吸すう。まさに看かん板ばんに偽いつわりなし。

  This vacuum cleaner really sucks well, just as advertised. It's exactly what it says on the box.