From Longman Dictionary of Contemporary Englishflavour of the monthflavour of the monthPOPULARan idea, person, style etc that is very popular at a particular time → flavour
Examples from the Corpus
flavour of the month• But Portillo is fast becoming flavour of the month and will increasingly find himself in the public eye.• Promotion is the new non flavour of the month.• He is never one to go for gimmicks or flavour of the month hairdressing.• Nicholson and Hopper suddenly became the flavour of the month.• But the flavour of the month was no flavour at all.• Not the flavour of the month exactly, especially with your own people.• I roll the flavour of the month round in my mouth. 