What is the meaning of the word "rapscallion"?

Definitions:

  1. a deceitful and unreliable scoundrel copy to clipboard noun
    • I'll never do business with that rapscallion again! copy to clipboard
  2. one who is playfully mischievous copy to clipboard noun
    • The kids are not bad; they are just little rapscallions. copy to clipboard

Synonyms: