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general::
Phrase(s): pick holes in something 1. [and] pick something to pieces
to criticize something severely; to point out the flaws or fallacies in an argument. • The lawyer picked holes in the witness’s story. • They will pick holes in your argument. • Stop picking holes in everything I say! 2. to poke or pinch little holes in something. • Look! You’ve picked holes in the bread! How can I make sandwiches? • Who picked holes in the blanket?
McGrawhill's American Idioms And Phrasal Verbs