Answer:
Tamp means...

  1. To pack down tightly by a succession of blows or taps.
  2. To pack clay, sand, or dirt into (a drill hole) above an explosive.

Phineas Gage used a tamping iron. He drilled holes in rocks and metals. Obviously that's where the "tamping" iron got its name!
First answer by ID1626775978. Last edit by ID1626775978. Question popularity: 1 [recommend question].