Do you have a crank?

Do you know what a crank is?  A crank is when you hold your arm up and move it around and it makes a noise - that's a crank.  You can get cranks in your legs too.  When you twist the wrong way with your leg or ankle bone and it hurts, that's a crank.  Your leg crank doesn't make a noise.  If your leg crank makes a noise, you should go to the doctor right away.  I had a crank in my knees last time.  My knees said they just didn't want to move me anymore and I couldn't go anywhere.  I needed someone to carry me because of the crank.  Does that happen to you?