Related Clues:

• Impulsively utters, with "out"
• Impulsively utters, with 'out'
• Restless movements, maybe
• Squeals, in a way
• Fails at secret-keeping
• Poker player’s giveaways
• Poker snafus
• Flushes, e.g., in poker
• Poker giveaways
• Rats (on)
• Every now and then, they'll list orders