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funny bone

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funny bone

 and crazy bone

a spot near the elbow bone that is very sensitive to the touch. Ouch, I hit my funny bone. Effie bumped her crazy bone and made a horrendous face.

See also: bone, funny

funny bone

1. A point on the elbow where the ulnar nerve runs close to the surface and produces a sharp tingling sensation when knocked against the bone. For example, Ouch! I just banged my funny bone. The expression is a pun on humerus (pronounced the same as humorous), the Latin name for the long bone of the arm. [Early 1800s]

2. A sense of humor, as in That comedian really tickles my funny bone. This expression is derived from def. 1.

See also: bone, funny