scarper UK /ˈskɑːpə/US /ˈskɑɹpəɹ/verb 2noun 1forms 3 verb2 •(UK, slang) To depart quickly; to escape, to flee, to run away.A horse takes fright and "scarpers," or runs away. — 1862 •(slang, old-fashioned) Chiefly in scarper the letty: to depart quickly or run away from (a place); to flee.jean: We can't all spend our time nailing our suitcases to the floor, and shin out of the window. / archie: Scarper the letty. — 1957 noun1 •(UK, slang) Chiefly in do a scarper: an act of departing quickly or running away; an escape, a flight.As a matter of fact we were all pritty flabergasted, for although we had all planned to do a scarper none of us realy thought we would have the guts to do it. — 1958 formsscarpered · scarpering · scarpers