puffball skirt
US /ˈpʌf.bɔːl ˌskɜːrt/
UK /ˈpʌf.bɔːl ˌskɜːrt/

1.
saia balão, saia puff
a skirt that is gathered at the hem to create a full, rounded, or puffy silhouette
:
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She wore a vintage puffball skirt to the party.
Ela usou uma saia balão vintage para a festa.
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The designer's new collection features several colorful puffball skirts.
A nova coleção do designer apresenta várias saias balão coloridas.