Technically, the ulnar nerve, referred as such because a hit to the elbow causes a tingly sensation
Ouch, I just hit my funny bone.
{i} point of the elbow near the ulnar nerve bone that when banged or knocked causes a strange and funny electric sensation; sense of humor
a point on the elbow where the ulnar nerve passes near the surface; a sharp tingling sensation results when the nerve is knocked against the bone; "the funny bone is not humerus
Your funny bone is the soft part of your elbow which gives you an uncomfortable feeling on your skin if it is hit. the soft part of your elbow that particularly hurts when you hit it