romp in the hay

noun1

1. •
   (euphemistic) A session of sexual intercourse.

   • Brenda (20 June 2019), “JUST BRENDA: He likes me but is scared of commitment”, in Daily Nation: “Don't let him waste your time like a rat on the highway if it isn't going anywhere. He knows you want a relationship when clearly what he wants is a romp in the hay.”
   • Nicole Pajer (18 October 2018), “Is It Normal To Cramp After Sex?”, in Huffington Post Life: “You just finished a nice romp in the hay and are feeling great. But then you notice a tightening sensation down below. What gives?”