Noun

1. A rascal, swindler, or rogue; a ne'er-do-well.

   While walking home from the bar, he was set upon by a bunch of scamps who stole his hat.

2. A mischievous person, especially a playful, impish youngster.

   My nephew is a little scamp who likes to leave lighted firecrackers under the lawnchairs of his dozing elders.

Verb

1. To skimp; to do something in a skimpy or slipshod fashion.
   • 1884, Samuel Smiles, Men of Invention and Industry

     His work was always first-rate. There was no scamping about it. Everything that he did was thoroughly good and honest.