To please very much; thrill; delight. Usually used in the passive participle.
Быть очень довольным или в восторге от кого-то или чего-то.
Joan was thrilled to pieces to see Mary.
My mother was tickled pink that you visited her when you were in town.
Моя мама была очень довольна тем, что ты зашел к ней в гости, когда был в городе.
Nancy was tickled pink with her new dress.