Green’s Dictionary of Slang

1. the vagina [coined by John Wilmot, Earl of Rochester (1642–80)].

1890–1904		Farmer & Henley Sl. and Its Analogues.
c.1900		A. Cairene Sixfold Sensuality 67: After supper they retired [...] Ella to wash her target and Adolph to clean his gun.

2. (US Und.) a lookout man [his vulnerability to police or by-standers].

1926		J. Black You Can’t Win (2000) 98: The ‘target’ is the most reliable man in the mob. To him is given the job of sticking up the town bull if he appears while the others are inside. He is the first one to get shot at and the last. It’s his job to carry the heavy artillery and stand off the natives while the others get the coin, and then to cover the get-away.
1949		Monteleone Criminal Sl. (rev. edn) 234: target A lookout for a criminal gang.

3. (S.Afr. township) anything, esp. a motor vehicle owned by a white-run company, seen as symbolic of apartheid and as such liable to criminal and violent acts.

1986		Pace May 16: Take [...] the hijacking of cars. It started [...] with youths forcing motorists to transport them to funerals, but.. developed into a [...] crime racket when the thugs took over. They branded any car believed to belong to a white company a ‘target.’ After two Pace cars were hijacked as ‘targets’, one was burnt and the other was recovered damaged [DSAE].
1988		Fair Lady 20 July 79: Not all white people are targets (township slang for whites who are target-ted for attack) because every person is unique [DSAE].