Related Clues:

• 'I double-___ you!'
• Take a chance
• Throw down the gauntlet
• Truth or ___ (slumber party game)
• Don't be a chicken
• Advice for the timid
• Take the plunge
• Have the gumption
• Show bravery
• It's a challenge
• Issue a challenge
• Instigator's phrase
• Certain bet
• Truth alternative
• Double ___