Ecchi is an often used slang term in the Japanese language for playfully sexual actions. As an adjective, it is used with the meaning of "sexy", "dirty" or "naughty"; as a verb, ecchi suru means “to have sex” or, as a noun, to describe someone of lascivious behavior. It is perhaps softer than the Japanese word ero, and does not imply perversion in the way hentai does.
