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.
That ramen shop is really delicious. It's true to its name.
This vacuum cleaner really sucks well, just as advertised. It's exactly what it says on the box.
Standard kanji form using 偽りなし.
Variant with 無し instead of なし; slightly more formal or literary feel.
Literally 'no falsehood on the signboard'; a set phrase meaning that something lives up to its advertised claims or reputation.