Related Clues:

• Jungle sounds
• Leo's comments
• Punch-line payoff
• Some circus sounds
• Part of the jungle cacophony
• Response to sarcasm
• Rolling-in-the-aisles sounds
• Music to a comic's ears
• Shows approval, as a crowd
• Laugh track sounds
• Some zoo sounds
• Punch line payoff
• Laughing syllables
• Comic's rewards
• 'Oh, yeah, that's funny'