Green’s Dictionary of Slang

Gary Busey n.

[rhy. sl. pussy n. (2) or floozy n. (1); ult. US movie star Gary Busey (b. 1944)]

a woman, in the context of sexual intercourse.

[Scot]I. Welsh Decent Ride 30: Fae the wine bars tae the bingo halls [...] everywhere thaire’s fuckin Gary Busey.