\Di"do\, n.; pl. {Didos}.
A shrewd trick; an antic; a caper.
{To cut a dido}, to play a trick; to cut a caper; -- perhaps
   so called from the trick of Dido, who having bought so
   much land as a hide would cover, is said to have cut it
   into thin strips long enough to inclose a spot for a
   citadel.