Synonyms of 'all the rage'
very popularI was a teenager at the time when platform shoes were all the rage.
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in the sense of fashionable
popular among well-off or famous people
It became fashionable to eat certain foods.
trendy (British, informal),
with it (informal),
all the go (informal),
schmick (Australian, informal),
Thesaurus for all the rage from the Collins English Thesaurus