dernier-cri

US /ˌdɝːn.jeɪ ˈkriː/
UK /ˌdɝːn.jeɪ ˈkriː/
1.

dernier-cri

something or someone that is very fashionable, new, and modern. Dernier cri is French, meaning "last cry.":

:
This is the dernier cri in sports headgear.
1.

dernier-cri

very fashionable, new, and modern:

:
In Paris, the world capital of fashion, the bikes quickly became dernier cri.