tip one's hand

Definition

In card playing, to accidentally reveal one's cards or hand.

Example Sentences

• "In Montreal, a 23-year-old pyromaniac tipped his hand by rushing into the fire station a few minutes before the gong rang, shouting: "Where's the fire?""
• "In a nearly 13-minute address, he did not tip his hand about what he might do next."
• "The questioning during the two-hour argument was mostly technical, and several conservative justices did not tip their hands."