Open English Wordnet
Verbs
(v)tickle, titillate, vellicatetouch (a body part) lightly so as to excite the surface nerves and cause uneasiness, laughter, or spasmodic movements (v)pinch, vellicateirritate as if by a nip, pinch, or tear“smooth surfaces can vellicate the teeth”,
“the pain is as if sharp points pinch your back”