Definition of "dirty" []

• Soiled, as with dirt; unclean. (adjective)
• Spreading dirt; polluting: The air near the foundry was always dirty. (adjective)
• Apt to soil with dirt or grime: a dirty job at the garage. (adjective)
• Contaminated with bacteria or other infectious microorganisms. (adjective)
• Squalid or filthy; run-down: dirty slums. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Once the race began, he was a ruthless competitor some preferred the term "dirty" who never seemed to go at less than his upper limit."
• "He had had an experience of moderately dirty weather -- the term dirty as applied to the weather implying only moderate discomfort to the seaman."
• "The reviewer is so enthralled with what he calls the "dirty linen" aspect of the story that he misses the actual and far more interesting narrative thread."