beast with two backs

== English == === Etymology === First attested in English by William Shakespeare, see quotations. Supposedly a calque of French la beste à deux doz (in modern French, la bête à deux dos) from Gargantua and Pantagruel, 1534, by François Rabelais. === Pronunciation === === Noun === beast with two backs (plural beasts with two backs) (idiomatic, euphemistic) Two people united in sexual intercourse in the missionary position. ==== Synonyms ==== double-backed beast two-backed beast See also Thesaurus:copulation ==== Derived terms ==== make the beast with two backs