The "Soul Solid" weapon used by Brook in the manga/anime One Piece .
That phrase could mean a few different things depending on what you're looking for. It might refer to:
Specifically, one-piece swimwear or intimate apparel in a solid color from a brand like Solid & Striped .
The exhibition Nothing is solid. Nothing can be held in my hand for long by Rodrigo Hernández, which explores "intimacy poetics."