Knave

Look it up at Wiktionary.

You may be looking for Knave (The Incomplete Death's Head) or Knave of Hearts.

Knave was among the insults which the Sixth Doctor applied to Astrolabus. (COMIC: Once Upon a Time-Lord)

The Earl of Leicester asked Vicki Pallister if she was "knave or commoner?" (TV: The Crusade)

Edwards accused Ben Jackson and Jacob Kewper of being "knaves and rogues". (TV: The Smugglers)

Irongron sought to find a shooting star before "some knave" robbed him of it. (TV: The Time Warrior)

Robin Hood branded the Twelfth Doctor a "false-tongued knave" for suggesting that he was affiliated with the Sheriff of Nottingham. Later, the Sheriff branded Robin a "prince of knaves". (TV: Robot of Sherwood)