There are 2 main definitions of Rob Roy in English:

Rob Roy1

Syllabification: Rob Roy
Pronunciation: /ˌräb ˈroi
 
/
( 1671–1734), Scottish outlaw; born Robert Macgregor. His reputation as a Robin Hood was exaggerated in Sir Walter Scott’s novel of the same name (1817).

Definition of Rob Roy in:

There are 2 main definitions of Rob Roy in English:

Rob Roy2

Syllabification: Rob Roy
Pronunciation: /ˌräb ˈroi
 
/

noun

A cocktail made of Scotch whisky and vermouth.
More example sentences
  • ‘Well,’ grandpa explains, ‘there's also a Rob Roy, which is Vermouth and Scotch.’
  • The days of Scotch and ginger ale, even a Rob Roy, are long over according to these pros.
  • Don't order things that are otherwise hard, like a Rob Roy, since downing them without alcohol will surely give you away as a novice drinker.

Definition of Rob Roy in: