word-of-mouthproof
adjectiveUK /ˌwɜːd əv ˈmaʊθ pruːf/
US /ˌwɝːd əv ˈmaʊθ pruːf/
So good that people tell their friends about it.
The little bakery became word-of-mouthproof after everyone told their neighbors about the warm cinnamon rolls.
RELATED WORDS
OTHER MEANINGS
2. Protected from bad rumors because people speak well of it.
The honest mechanic was word-of-mouthproof, so no gossip ever hurt his shop.
3. Able to spread by people talking rather than by ads.
Their word-of-mouthproof lemonade stand grew without a single poster.
4. Designed to make customers want to tell others.
The playful packaging made the toy word-of-mouthproof among parents.
5. Known mainly through friends' recommendations.
The hidden trail was word-of-mouthproof, passed along by hikers who loved it.