Used when acknowledging that someone or you have gone beyond what's necessary or appropriate in a situation. After decorating for hours, she admitted she might have overdone it.
Pro Tip 2/3
Contextual Subtlety
Suggests a slight criticism or concern for the effects or potential harm of the excessive action. He overdid it at the party and had a terrible hangover.
Pro Tip 3/3
Physical Consequences
Often relates to physical activities where overexertion can lead to discomfort or injury. I really overdid it during the workout and now my muscles are sore.