To use unethical, illegal, or injurious means; be deceptive and tricky; chicane: When he started in politics he didn’t mean to play dirty
[1940s+; the related form play dirt is found by 1908]
noun, Theater. 1. a person, usually a professional playwright, employed to improve a script, especially shortly before the play’s opening. noun A writer who specializes in altering and improving other writers’ plays (1940s+ Theater)
[pley-doh] /ˈpleɪˌdoʊ/ Trademark. 1. a brand name for a soft, nontoxic modeling compound made in bright colors and marketed for children.
[pley-doun] /ˈpleɪˌdaʊn/ noun, Chiefly Canadian. 1. a play-off.
[plat-n-uh m, plat-nuh m] /ˈplæt n əm, ˈplæt nəm/ noun 1. Chemistry. a heavy, grayish-white, highly malleable and ductile metallic element, resistant to most chemicals, practically unoxidizable except in the presence of bases, and fusible only at extremely high temperatures: used for making chemical and scientific apparatus, as a catalyst in the oxidation of ammonia […]