'Bobby' definitions:

Definition of 'bobby'

(from WordNet)
noun
An informal term for a British policeman

Definition of 'Bobby'

From: GCIDE
  • Bobby \Bob"by\, n. A nickname for a British policeman; -- from Sir Robert Peel, who remodeled the police force. See Peeler. [Slang, Eng.] --Dickens. [1913 Webster]

Synonyms of 'bobby'

From: Moby Thesaurus