dirty (dirtier comparative) (dirtiest superlative) (dirties 3rd person present) (dirtying present participle) (dirtied past tense & past participle )
1 adj If something is dirty, it is marked or covered with stains, spots, or mud, and needs to be cleaned.
(=grubby) (Antonym: clean)
She still did not like the woman who had dirty fingernails...
2 verb To dirty something means to cause it to become dirty.
He was afraid the dog's hairs might dirty the seats... V n
3 adj If you describe an action as dirty, you disapprove of it and consider it unfair, immoral, or dishonest.
usu ADJ n (disapproval)
The gunman had been hired by a rival Mafia family to do the dirty deed.
Dirty is also an adverb., adv ADV after v
Jim Browne is the kind of fellow who can fight dirty.
4 adj If you describe something such as a joke, a book, or someone's language as dirty, you mean that it refers to sex in a way that some people find offensive.
usu ADJ n
They told dirty jokes and sang raucous ballads...
Dirty is also an adverb., adv ADV after v
I'm often asked whether the men talk dirty to me. The answer is no.
5 adj Dirty is used before words of criticism to emphasize that you do not approve of someone or something.
INFORMAL ADJ n (emphasis)
You dirty liar.
6 If you say that someone washes their dirty linen in public, you disapprove of their discussing or arguing about unpleasant or private things in front of other people. There are several other forms of this expression, for example wash your dirty laundry in public, or in American English, air your dirty laundry in public.
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wash one's dirty linen in public phrase V inflects (disapproval)
We shouldn't wash our dirty laundry in public and if I was in his position, I'd say nothing at all.
7 If someone gives you a dirty look, they look at you in a way which shows that they are angry with you.
INFORMAL
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dirty look phrase N inflects, PHR after v
Michael gave him a dirty look and walked out.
8 Dirty old man is an expression some people use to describe an older man who they think shows an unnatural interest in sex.
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dirty old man phrase N inflects, usu vlink PHR (disapproval)
9 To do someone's dirty work means to do a task for them that is dishonest or unpleasant and which they do not want to do themselves.
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do someone's dirty work phrase V inflects
As a member of an elite army hit squad, the army would send us out to do their dirty work for them.
10 If you say that an expression is a dirty word in a particular group of people, you mean it refers to an idea that they strongly dislike or disagree with.
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a dirty word phrase v-link PHR
Marketing became a dirty word at the company.