Parm my beg to differmints: I've always conceived of the funny bone as the elbow, not expicitly a bone but a conjucntion of bones. Or either that or just the distal end of the humerus. AHD identifies it as the point where the ulnar nerve runs close to the surface. Derivation is from the tingling sensation resulting from a blow received there. Anybody gets whacked sharply on the triceps would not make any reference to a funny bone.