verb tamped, tamping
- 1. To fill up (a hole containing explosive) with earth or cement, etc before setting off the explosion.
2. To drive or force down (eg ballast on a railway) by repeated blows.
3. To pack (tobacco in a pipe or cigarette) into a tighter mass by tapping it or pushing it with a tamper2 (sense 2) or a finger, etc.
- Form: tamp something down (also)