Pan-Galactic Gargle-Blaster

The Pan Galactic Gargle Blaster was an alcoholic beverage served by Milo on the Rosette of Sirius. It could be used for medicinal purposes and to help cure sore throats. (COMIC: Clara Oswald and the School of Death). The Doctor also mentions Pan Galactic Garg oyle  blasters after meeting some garrulous gargoyles.

Behind the scenes
The Pan Galactic Gargle Blaster was a drink in The Hitchhiker's Guide to the Galaxy series.