meet (your) Waterloo

if someone who has been successful in the past meets their Waterloo, they are defeated by someone who is too strong for them or by a problem which is too difficult for them.

She finally met her Waterloo when she tried to take on the club champion.

• more power to
• more power to someone
• more power to something
• More power to your elbow!
• more something than can shake a stick at
• more something than has had hot dinners
• more something than someone has had hot dinners
• more something than you can shake a stick at
• more than bargained for
• more than can shake a stick at
• more than has had hot dinners
• more than meets the eye
• more than someone bargained for
• more than someone has had hot dinners
• more than something bargained for
• more than you can shake a stick at
• more the merrier.
• more the merrier
• more the more
• more the more another thing happens
• more to someone than meets the eye
• more to something than meets the eye
• more to than meets the eye
• morning after
• morning after the night before