An old retired sailor puts on his old uniform and goes down the docks once more for old times sake.
He hires a prostitute and takes her upto his room, hes going at it best he can for a guy his age, the old boy asks how am i doing, the prostitute replies about 3 knots 3 knots!
he replies whats that supposed to mean?
She says your knot hard you're knot in and your knot getting your fncking money back!!