Related Clues:

• It may hold your horses
• With 29-Down, 'Do not discuss this' ban
• Brief joke
• Laugh line
• "Eww!"
• Stake attachment, maybe
• Jokester's bit
• Squirting flower or dribble glass
• Silence, in a way
• Handcuff
• ___ reflex
• Comical bit
• Part of a routine
• Dog chain
• [Yuck ... that's awful!]