Related Clues:

• Reaction to a knee-slapper
• "What have we here?!"
• Mirthful sound
• Literal laughter
• 'Well, whaddya know?!'
• ''Yuk, yuk'' kin
• Kin of 12-Down
• Quip response
• Tee-hee cousin
• Guffaw sound
• Scoff or boo
• A couple of laughs
• ''Got you!''
• Cry with a pointed figure
• ''So that's your game, eh?''