get over on

Possibly from get one's leg over.

• Audio (General Australian):

  (file)

get over on (third-person singular simple present gets over on, present participle getting over on, simple past got over on, past participle (UK) got over on or (US) gotten over on)

1. (transitive, slang) To have sex with.
   • 1994 November 14, Cornelius Plantinga Jr., “Natural born sinners”, in Christianity Today, volume 38, number 13, page 24:

     For Northton's young males, to " get over " on a woman – that is, to lure her into sex with vague promises of love and marriage; to get over on a woman and, particularly, to impregnate one (or three or five), and to " get away without being held legally accountable for out-of-wedlock children " is to prove strength, virility, and status. To a number of underclass youths, love is only another hustle.

2. (transitive, informal) To take advantage of.
   • 2008 August 17, Paul Tough, “A Teachable Moment”, in New York Times, Magazine, page 30:

     Stewart and his classmates gave Schmitz a hard time when she first arrived.' We tried to get over on her, but she always cracked down,' he said.'

• (have sex with): coitize, go to bed with, sleep with; see also Thesaurus:copulate with

• get one over on