verb, -did, -done, -do⋅ing.| 1. | to do to excess; overindulge in: to overdo dieting. |
| 2. | to carry to excess or beyond the proper limit: He puts on so much charm that he overdoes it. |
| 3. | to overact (a part); exaggerate. |
| 4. | to overtax the strength of; fatigue; exhaust. |
| 5. | to cook too much or too long; overcook: Don't overdo the hamburgers. |
| 6. | to do too much; go to an extreme: Exercise is good but you mustn't overdo. |