This is the verb form of "resourcefulness" or "making the most of something." It's when you find a way to use something, even if it's not for its intended purpose. "Paano ko kaya mapapakinabangan itong mga lumang bote?" It's also used in a negative way, like when someone feels they are just being used: "Ayokong maramdaman na pinapakinabangan mo lang ako." Ouch, hugot.