[1950s+] pertaining to the female breast, usu. in context of pornography, e.g. in phrs. below.
[1950s+] (US) pictures of attractive young women.
[1970s] a softcore pornographic magazine.
[1960s+] a magazine which features scantily clad women. The pictures are interspersed with varying amounts of prose, reviews etc. but despite all other pretensions, they are in the end an aid to masturbation.