Frank's Closet is an infamously known location that appears very frequently in Filthy Frank's videos. Although it may seem like an ordinary closet, it is actually an all-powerful gateway which can teleport Frank and his friends to different places in space and time. Frank also uses it to keep prisoners, such as the Chromosome Kid and The Shaman. The closet is located in Frank's house.
For strange reasons, it seems like Safari Man sleeps and jerks off to porn inside this closet.
It is unknown if this closet and The Wardrobe are the same object, but Frank was only seen using the closet.