intestinal fortitude

American  

noun

1. courage; resoluteness; endurance; guts.

   to have intestinal fortitude.

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Etymology

Origin of intestinal fortitude

First recorded in 1940–45

Example Sentences

The next eight months will be a trial of everyone’s intestinal fortitude.

From Salon

“I think the other areas, with his strength, his agility, his mobility, his conditioning, those are all things that it’s going to take time and work with us and our staff and he’ll get better over time but just his intestinal fortitude to compete, he’s adjusting.”

From Los Angeles Times

“I think there are options, but it takes some diligence, it takes some intestinal fortitude, to step up and say hold on, we’re going to vet this well,” he said.

From Los Angeles Times

Having the intestinal fortitude to fight on no matter the circumstances is what builds champions.

From Los Angeles Times

So often during this most improbable of football seasons for Texas Christian, the Horned Frogs’ fearless Heisman Trophy finalist was at his most dangerous in those particularly grim moments, beaten and bruised with his back against the wall, forced to dig down deep, conjuring whatever miracle he could manage through a combination of sheer will and intestinal fortitude.

From Los Angeles Times