Definition of bulldozers:
(n) :
A tractor with caterpillar tracks and an attached blade for pushing earth and building debris for coarse preliminary surface grading, demolishing building structures, etc.
(n) :
One who bulldozes.
(n) :
(by extension) A bully; an overbearing individual.
(v) :
To bulldoze (demolish with a bulldozer).
(v) :
To bulldoze (push through forcefully).
(n) :
(historical, chiefly in the plural) A member of a self-identified group of white US Southerners who colluded to influence outcomes of post-Reconstruction elections by intimidating, coercing and bullying black voters and legislators, including burning down houses and churches, flogging and murdering opponents.