verb

• (transitive, dated) Chiefly in scarper the letty: to depart quickly or run away from (a place); to flee.
  "We were in debt with the landlady, and Joe and I had decided that none of us should be allowed to "scarper the letty," which means to sneak out of the lodgings without paying. The good lady might have to wait for her money—that was obvious—but we were stuck in Manchester until we could pay and get enough together to take us to a fresh district."
• (intransitive) To depart quickly; to escape, to flee, to run away.
  "A horse takes fright and "scarpers," or runs away."

noun

• (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."