A cosmopolitan, a cocktail containing vodka, triple sec, lime juice and cranberry juice.
"After ordering three cosmo for our brunch table, we waited impatiently as the bartender shook each drink vigorously before garnishing them with fresh limes."
A male given name from Ancient Greek, always rather rare.
"She spent her morning browsing through the latest issue of Cosmo to find outfit inspiration for the weekend party."
Cosmopolitan, an American monthly fashion and entertainment magazine for women.