To be cold-blooded. Usually a phrase type used in sports when you're clutch under pressure and you rise against adversity.
When the game is on the line you gotta have ice in your veins.

Kobe Bryant has ice in his veins. He shows no mercy against his opponent when the game is on the line when he slashes through players with killer instinct.
by Sivraj85 February 15, 2012
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A figurative saying meaning that someone is extremely good in the clutch and very cool under pressure.
Norm: "Well folks, we're here on the 18th hole and Tiger Woods is having a great day, putting his balls pretty much wherever he wants to."
Steve: "Yes indeed, he's given a brilliant performance here, Norm. Do you think he's got what it takes to emerge victorious?"
Norm: "Of course, Steve. Tiger is a clutch performer with ice water in the veins. Here he goes to finish up the night."
Steve: "Looking good...oh no! Elin woke up just before he snuck back into bed! She sees the lipstick on his shirt. Uh oh, there she goes looking through his texting history. Oh man, here she comes with the golf club." ***WHACK!***
Norm: "Oooh, great swing mechanics there, but that's got to hurt."
Steve: "Well, that's it folks. Looks like our champ couldn't close it out today, and he could be on injured leave for some time now."
by Nicholas D April 4, 2011
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One who performs well under pressure. Especially in physics competitions.
Scott has iced veins because he finished the coin contest with 0.2 seconds to spare.
by physicsfan January 17, 2012
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Anyone who does the pose "ice in the veins" gets tons of bitches everyday
He celebrated with ice in the veins. He definitely fucks all the bitches
by VasaMati May 5, 2022
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