down-and-dirty

(dounˈənd-dûrˈtē)

1. Intently and fiercely competitive, often unscrupulously so: “Keeping his cool has never been easy for [him] in the playoffs . . . when opponents do their down-and-dirty best to bewitch, bother and bewilder him” (Phil Anastasia).
2. Bawdy; lewd.