A penis, often in an erect state.
"The young huntsman unsheathed his hunting knife and placed it against the butcher's steel, ready to be sharpened."
Something used to cut the limes, and grapefruit.
"Where'd you get the knife?" I asked.
"Room sevice sent it up," he said. "I wanted something to cut the limes."
"They didn't have any, they don't grow in the desert."