风靡一时

fashionable for a while (idiom); all the rage

one / single / a (article) / as soon as / entire; whole; all; throughout / "one" radical in Chinese characters (Kangxi radical 1) / also pr. [yao1] for greater clarity when spelling out numbers digit by digit

old variant of 時|时[shi2]

o'clock / time / when / hour / season / period

wind / news / style / custom / manner / CL:陣|阵[zhen4],絲|丝[si1]

a period of time / a while / for a short while / temporary / momentary / at the same time

fashionable / popular

to waste (money)

extravagant / go with fashion / not