The Greyhound is a cocktail made from vodka and grapefruit juice. It is named after the greyhound bus, which is made from a bus with a transparent roof so that passengers can see the sky.

To make a Greyhound, fill a shaker with ice and add vodka and grapefruit juice. Shake well and strain into a chilled glass.

Why is vodka and grapefruit juice called a greyhound?

Originating in the 1920s, the vodka and grapefruit juice cocktail known as a …