Pick holes in something
Definition 1 of 1
Pro Tip 1/3Critical Tone
Using 'pick holes in something' often implies a skeptical or disapproving attitude towards the subject. 
During the meeting, she didn't hesitate to pick holes in the new policy.
Pro Tip 2/3Negative Emphasis
Emphasizes negative aspects more than positive, suggesting that something is not well thought out or convincing. 
Critics were quick to pick holes in the director's latest movie plot.
Pro Tip 3/3Debate Context
Often used in contexts where ideas are debated or challenged, such as academics, politics, or business. 
The opposition party loved to pick holes in the government's strategy.