👉 A floppy fluid, also known as a lubricating fluid, is a viscous substance that reduces friction and wear between surfaces in contact. In biological contexts, it often refers to synovial fluid found in joints, which acts as a cushion and lubricant, allowing smooth movement by minimizing the friction between bones. This fluid is crucial for joint health, helping to distribute loads, absorb shocks, and reduce the risk of injury. It also contains nutrients and helps remove waste products from cartilage. In some industrial applications, synthetic lubricants mimic these properties to reduce friction and wear in machinery.