Meaning of the word "outside noisy, inside empty" in English

What does "outside noisy, inside empty" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

outside noisy, inside empty

US /ˈaʊt.saɪd ˈnɔɪ.zi, ɪnˈsaɪd ˈɛmp.ti/
UK /ˈaʊt.saɪd ˈnɔɪ.zi, ɪnˈsaɪd ˈɛmp.ti/
"outside noisy, inside empty" picture

Idiom

describing something that appears impressive or loud on the surface but lacks substance, value, or sincerity within

Example:
His grand promises were just outside noisy, inside empty.
The marketing campaign was outside noisy, inside empty, failing to deliver any real results.