get naked
1. To take all of one's clothing off so that one is nude. That's what skinny-dipping means—you have to get naked!
2. slang To do something enjoyable and/or relaxing; to let loose and have a good time. (Doing so does not usually entail being naked, despite the wording of the phrase.) It's been such a long week—let's just get naked tonight.
get naked
in. to enjoy oneself thoroughly; to relax and enjoy oneself. Let’s all go out and get naked tonight.