Green’s Dictionary of Slang

to steal; to rob.

1908		Marion Dly Mirror (OH) 27 June 12/5: He looked like a booby of a boy that had just been bootjacked [...] ‘I’ve been robbed — cleaned out’ says he.
[1935		A.J. Pollock Und. Speaks 11/2: Bootjacker, high pressure newboys, usually working afternoons, shouting exaggerated headlines].
1990		(con. early 1950s) J. Ellroy L.A. Confidential 3: Tijuana cops standing by to bootjack a piece of his goodies.
2001		(con. 1964–8) J. Ellroy Cold Six Thousand 171: The point guard saluted. A baby Fed bowed. Jefe bootjacked his umbrella.
2018		M. Mesko Confessions of a Caddie 65: This guy [...] sucker-punched another caddie one morning for boot-jacking his loop.
2023		(con. 1962) J. Ellroy Enchanters 127: [M]y corkboard evidence, bootjacked by the Feds on 8/6.