refers to the cinamax movie channel which is known for showing softcore porn on friday and saturday nights.
The party sucked so went home early and watched some skinamax.
by toast455 June 22, 2005
1 more definition
(adj) Any of the male band members of Fueled By Ramen and/or Decaydance records naked. preferable William Beckett.
"Sorry folks, this ain't no skinamax."
by xastitchaway December 02, 2007