Possible Clues:

• Cause to roll in the aisles
• Cause to convulse with laughter
• More than amuse
• Kill with premeditation
• Finish off, as a fire-breather
• Amuse immensely
• Kill, as the Minotaur
• Do in, as the Jabberwock
• Take out, as a vampire
• Overwhelm with one-liners