Answer:
It's anything but amusing when this body part gets hit.
Long and slinky like a trout, never sings till it's guts come out.
What doesn't get any wetter, no matter how much rain falls on it?
Only one color, but not one size. Stuck at the bottom, yet easily flies. Present in sun, but not in rain. Doing no harm, and feeling no pain.
Autumn leaves and bad bowlers wreak havoc on this
What did the piece of wood say when he saw the screwdriver and screws approaching?