Related Clues:

• Pun reaction
• Ditch with a retaining wall used to divide land
• Routine reaction?
• Comedy-club sound
• ''Very funny!''
• "The joke's on you"
• "Very funny"
• Punchline response
• Laugh syllables
• Reaction to a horrible joke
• LOL, spoken
• [Not more homework!]
• 'Funny ___'
• ''That's funny!''
• Laughter