Related Clues:

• 'I'm onto your scheme!'
• "I'm onto your scheme!"
• "I see," facetiously
• "Well, what have we here?"
• "Oh, of course!"
• 'Now it makes sense!'
• 'Caught you red-handed!'
• Facetious words of enlightenment
• 'And what have we here!?!'
• "And what have we here!?!"
• 'Now I'm onto you!'
• "Well now!"
• 'I see it now!'
• "Yeah, what the heck!"
• 'Sneaky little bugger'