highballPronunciation: /ˈhʌɪbɔːl/ North AmericanDefinition of highball noun 1a drink consisting of a spirit, especially whisky, and a mixer such as soda, served with ice in a tall glass. 2 informal a railway signal to proceed. verb [no object, with adverbial of direction] informal travel fast:they highballed northhighball in other Oxford dictionaries Definition of highball in the US English dictionary
