(US tramp) a chase, a hue and cry; a ‘tail’.
|Amer. Tramp and Und. Sl. 167: Shag.–A chase or organized pursuit by the police or by an irate citizenry.|
|Thrilling Detective Oct. [Internet] When Mullin thought I was chiseling on the police he had a habit of sticking a shag on me [...] But nobody tailed me to Broadway.‘Crepe for Suzette’|
|World’s Toughest Prison 817: shag – A chase or organized pursuit by the police or an irate citizenry.|