cosmo
n. countable B2 Upper Intermediate US //ˈkɔzmoʊ// cos·mo
n. a popular pink cocktail made with vodka, cranberry juice, and lime. It is a short name for a Cosmopolitan.
n. a cocktail consisting of vodka, triple sec, cranberry juice, and freshly squeezed or sweetened lime juice. Informal clipping of 'Cosmopolitan'.
She ordered a cosmo at the bar.
The group of friends celebrated their promotion by ordering a round of cosmos at the lounge.
While the cosmo gained immense cultural visibility in the late nineties, it remains a staple of modern mixology due to its balanced profile of tartness and sweetness.
Usage
Typically used in informal social settings; the full name 'Cosmopolitan' is preferred on formal drink menus.