The decorative curl on the end of a violin is called the scroll.
If you mean on the body of the violin, you may be referring to what are commonly called the "f holes," because of their f-like shape. If you're talking about the thing at the end of the neck, that's the headstock.
curl
The waist as you called it, or the C-bouts are for the bow of the violin. While bringing the bow across the strings, yo must maneuver it. When playing the E string on the violin, the bow is almost vertical, The C-bouts help to prevent it from touching the side of the violin.
Le Pico. The song is called “Country Stoned”
on the end of your chair
a frog
you hold a violin by the far end of the neck with your left hand, unless you have a left-handed violin, then it's right. you set the violin on your shoulder, with your chin resting on the left hand side of the violin, again, unless you own a left-handed violin.
For students who are trying to determine which size violin to play, pick up the violin and place it on your shoulder and under your left jaw as you would normally play. Your left fingers should be able to curl around the scroll, and still have bend in your elbow. This is very important. Your arm should not be straight out, don't strain to curl your fingers around the scroll.
The tailpiece holds one end of the strings.
if you're speaking anatomically (as in origin and insertion), the origin of the bicep curl would be its fixed attachment at the supraglenoid tubercle and the coracoid process (two heads), as a bicep curl is an open chain motion (distal end is free moving --> proximal end is the origin). it would be more correct, though, to say refer to it as the origin of the biceps during a bicep curl.
"The Concert" by Marco Beltrami - on iTunes Beltrami was the composer of the film score, and this piece was his own composition, titled such because it was The Concert at the end of the movie.
to curl, start near your scalp, and pull it down like you would to straighten it. then, when you reach the end, start wrapping your hair around the hair straightener.