cut (one) dead
To totally ignore someone, usually out of anger or displeasure. I was hoping to reconcile with Mandy today, but when I approached, she just cut me dead. I'm not surprised the community leaders cut you dead when you dropped off our petition. They wish we would just go away and leave them alone. A: "Did you see Emma today?" B: "Yes, and I cut her dead. After all, she's the one who started spreading that awful rumor about me!"
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