1.A leaping forth; a darting; a spring.
2.A rushing or bursting forth; a quick issue; a sudden eruption; specifically, an issuing of troops from a place besieged to attack the besiegers; a sortie. "Sallies were made by the Spaniards, but they were beaten in with loss."
3.An excursion from the usual track; range; digression; deviation. "Every one shall know a country better that makes often sallies into it, and traverses it up and down, than he that... goes still round in the same track."
4.A flight of fancy, liveliness, wit, or the like; a flashing forth of a quick and active mind. "The unaffected mirth with which she enjoyed his sallies."
5.Transgression of the limits of soberness or steadiness; act of levity; wild gayety; frolic; escapade. "The excursion was esteemed but a sally of youth."
Sally port. (a)(Fort.) A postern gate, or a passage underground, from the inner to the outer works, to afford free egress for troops in a sortie.
(b)(Naval) A large port on each quarter of a fireship, for the escape of the men into boats when the train is fired; a large port in an old-fashioned three-decker or a large modern ironclad.