verb, -sold, -sell⋅ing.| 1. | to sell more of (a stock, product, etc.) than can be delivered. |
| 2. | to sell aggressively, as by using high-pressure merchandising techniques. |
| 3. | to emphasize the good points of excessively and to a self-defeating extent: She so oversold the picnic that I became convinced I'd have a better time at the movies. |
| 4. | to sell something aggressively. |
| 5. | to make extreme claims for something or someone. |