Related Clues:

• React to a tongue depressor
• Quick joke
• Owl's utterance
• Kind of gift
• [blech!]
• Owl howl
• Owl's cry
• With 40-Across, nocturnal noisemaker
• __ order
• Call heard at night
• Handkerchief stuffed in the mouth, e.g.
• A muzzle - or a joke
• Stop the mouth with a joke
• Retch at the joke?
• A joke to muffle?