funny bone

Question

What is the literal English translation for the funny bone-

Cóndilo interno del húmero

The dictionary on this site said it is vulgar and for familiar usage...

Answer 1

<http://dictionary.reference.com/search'q=vulgar>

brop123,
Look at definition 4 and 5 at the above link. Vulgar means common as well as indecent and I think that is the meaning of vulgar in your definition. I can't image how funny bone could be indecent.
To answer your question: clipped this from article online

But your funny bone isn't actually a bone at all. Running down the inside part of your elbow is a nerve called the ulnar nerve. The ulnar nerve lets your brain know about feelings in your fourth and fifth fingers. It's also one of the nerves that controls some movement of your hand.

You get that funny feeling when the ulnar nerve is bumped against the humerus (say: hyoo-muh-rus), the long bone that starts at your elbow and goes up to your shoulder. Tapping your funny bone doesn't do any damage to your elbow, arm, or ulnar nerve. But it sure feels strange!

Answer 2

The dictionary on this site said it is vulgar and for familiar usage

What is''

Answer 3

The translation you suggest might be perfect... for a technical discussion in a theatre among surgeons, but not out of that context.

Are you a doctor? Where do you want to use this term? Give us a full sentence, please.