down-and-dirty

down-and-dirt y ▶adjective informal 1 highly competitive or unprincipled: backstabbing slander and electronic harassment are freely employed in down-and-dirty hacker feuds. 2 earthy, direct, and explicit: the down-and-dirty realities about these diseases. • unvarnished; in a raw or prototypical form: they serve up some down-and-dirty Texas blues.