Definition of prunes:
(v) :
(transitive, horticulture) To remove excess material from a tree or shrub; to trim, especially to make more healthy or productive.
(v) :
(transitive, figuratively) To cut down or shorten (by the removal of unnecessary material).
(v) :
(transitive) To remove (something unnecessary) for the sake of cutting down or shortening that which it was previously part of.
(n) :
The dried, wrinkled fruit of certain species of plum.
(v) :
(intransitive, informal) To become wrinkled like a dried plum, as the fingers and toes do when kept submerged in water.
(n) :
(slang) An old woman, especially a wrinkly one.