- the beast with two backs
- copulationFrom the facing position of the parties. The beast can be made or played:Your daughter and the Moor are now making the beast with two backs. (Shakespeare, Othello)She had the goods on me and in an idle moment I played the beast with two backs with her. (M. McCarthy, 1963)Whence also the two-backed beast and the twobacked game:I... know what it had been like with Deborah and him, what a burning two-backed beast. (Mailer, 1965)She had a hearty appetite for the two-backed game. (Fraser, 1977)
How not to say what you mean: A dictionary of euphemisms. R. W. Holder. 2014.