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1. A tendency to discuss, think about, or focus on lewd or vulgar topics, or to interpret things in such a way. I wasn't referring to sex at all, and you know it. Gosh, you've got such a dirty mind! Of course, with my dirty mind, the first thing I thought of was a crude joke.
2. A person with such a tendency or inclination. This film was written by the same dirty minds that created Sausage Party, so it's no surprise that it's just as filthy.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
dirty mind, a
Prurient, describing someone who thinks of or sees the obscene or indecent aspects of something. The adjective “dirty” has been used in this sense since the 1500s, but the phrase dates only from the 1900s. Stephen Price played on it in Just for the Record (1961): “He had a real porny [pornographic] article . . . not just dirty, mind you, but Art.”
See also: dirty
The Dictionary of Clichés by Christine Ammer Copyright © 2013 by Christine Ammer