Yosemite Sam's hands pluck his prodigious Moustache.
literally, to prune - the gardener prunes the bushes.
Figuratively, to nip in the bud.
It's often used in the phrase 才能を摘む (sainou wo tsumu,to stunt the emotional growth of your kids).(BOOBOO: plucking a single flower is ぬく, not つむ）
To point out a shortcoming - You can use it about your friends. Or "The critic pointed out the shortcomings of the play."