1. to pump excessively or more than necessary
Usage: transitive verb; often used in technical or mechanical contexts
2. to extract or remove too much liquid from a source, especially groundwater
Usage: transitive verb; environmental or hydrogeological context

Examples

• Do not overpump the bicycle tire or it may burst.
• The well was overpumped for decades, causing the water table to drop significantly.
• Overpumping the hydraulic system can damage the seals.
• Farmers in the region have been overpumping groundwater to irrigate their crops.
• Make sure you don't overpump the air mattress before the camping trip.