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.

The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.