Be all the rage
Definition 1 of 1
Pro Tip 1/3Pop Culture
The phrase often refers to trends linked with pop culture, like music, fashion, or tech. 
Vintage vinyl records are all the rage among music enthusiasts now.
Pro Tip 2/3Temporary Trend
This phrase suggests a trend that may be temporarily very popular but can change quickly. 
Those spinners were all the rage last year, but nobody uses them anymore.
Pro Tip 3/3Colloquial Usage
It's a colloquial term, apt for casual conversations rather than formal writing or speeches. 
Have you seen the new game app? It's all the rage at school.