“Bulldozer” is a metaphor that originated in the Deep South during Reconstruction.
A “bull-dose” was a dose of the bullwhip and was used by American terrorist groups to inhibit freed black slaves from using their new mandate to vote.
In 1925, when a machine appeared that could change everything in its path through sheer force, it took the name bulldozer from the bullwhip and changed the meaning of the word.
We call a powerful earth-moving tractor a “bulldozer”.
