Learner's definition of TICKLE
to try to make (someone) laugh by lightly touching a very sensitive part of the body with your fingers, a feather, etc.
to have or cause a slightly uncomfortable feeling on a part of your body
to please or amuse (someone or something)
The food will tickle your taste buds. [=you'll enjoy the taste of the food]
We were tickled by the invitation.
The idea of going to the party tickled her.
tickle the ivories
tickle your fancy
to interest or attract you