I'd be thrilled if the display of a poster was the only thing that made the exterior of my dwelling look naff . Though having googled the expression naff I'm not sure if poster display fits into this category . Lots of definitions ,but I quite like this one * Naff is polari (or palare), the gay urban secret language developed in London to ensure conversational privacy in public when talking about gay sex or insulting straight people.Naff is an example of an acronym - Normal As Fuck - and means drab, unfashionable, dull. By extension, it is a defining characteristic of straight people, who lack the style and swagger of the urban homosexual."