roll in the hay is a noun and verb meaning "slang for sexual intercourse". It carries 2 recorded senses.
slang for sexual intercourse
obscenity · slang
have sexual intercourse with
“This student sleeps with everyone in her dorm”
“Adam knew Eve”
“Were you ever intimate with this man?”
archaism
Definitions, synonyms and semantic relations for roll in the hay come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.