Top Definition
Premium channel from the people who brought you HBO. Known for airing a lot of soft core porn.
Let's all go watch Cinemax.
by 1069 September 26, 2006
A cable channel that shows movies most of the time. Other than that they show gross crap Real Sex that shows old people doing it (ICK).

Cinemax was formed in 1980 by HBO and was the first premium cable tier.
by star8706 November 07, 2003
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