1. (

• tickle ,
• titillate ,
• vellicate

) touch (a body part) lightly so as to excite the surface nerves and cause uneasiness, laughter, or spasmodic movements ;

2. (

• pinch ,
• vellicate

) irritate as if by a nip, pinch, or tear; "smooth surfaces can vellicate the teeth"; "the pain is as if sharp points pinch your back" ;