Green’s Dictionary of Slang

have been around v.

to be experienced sexually; if used of a woman, usu. derog.

W.R. Burnett Giant Swing 95: [I]t was funny for her to say: ‘I’m not that easy’ [...] She’d probably been around all right; those small towns weren’t so slow as people thought they were.
[US]W.R. Burnett Quick Brown Fox 20: ‘[H]e said Jean had been around a lot [...] that Jean was pretty hot stuff’.
[Aus]D. Stivens Jimmy Brockett 104: I’d been around, so I stopped and just talked for a bit. But when I tried again she set up a yelp.
[US]J. Thompson Swell-Looking Babe 82: She’s been around, she knows what the score is.
[Aus](con. 1944) L. Glassop Rats in New Guinea 19: He’s been around. He knows.
[US](con. 1962) J. Ellroy Enchanters 152: ‘I heard she’s been around’.