Green’s Dictionary of Slang

the female breasts; thus bit of bazooka, petting, i.e. touching the breasts (and perhaps other parts of the body), but stopping short of penetration.

1963		Sun. Times (London) 8 Sept. in DSUE.
1978		(con. WWII) T. Sanchez Hollywoodland (1981) 92: Thanks for the pinup of Betty Grable. What a pair of bazookas that dame’s packing.
1980		Maledicta IV:2 (Winter) 197: Or she may permit a bit of bazooka (= all but), refraining from sexual intercourse.
1988		J. McDonald Dict. of Obscenity etc.
1999		Guardian G2 12 Nov. 13: He suffered terminal vacuity when weaned from his mother’s ‘baloobas’.
2001		P. Meditzy ‘A Day In The Life Of...’ 29 Apr. 🌐 I ripped off her blouse and sunk my mouth into her bazookas chewing on her nipples which were now ‘the size of JCB starter buttons’.
2007		S. Albert Spanish Dagger 186: Crazy Zany from next door brandished her bazookas.