do the deed

Etymology
Earliest attested usage is from : 1340, Ayenbite of Inwyt "Ȝete þai ben al clene; Haue þai no dede y-done" ("Yet they are all clean; They have not had intercourse"); and in 1443, Reginald Pecock, The Rule of Christian Religion: "By force hath he..don that dede, That he hath reft hire of hire maydenhede." (By force he has done that deed, That he has deprived her of her virginity.)

Verb

 * 1)  To have sex.

Synonyms

 * see Thesaurus:copulate