1 definition by FlKeysKevin

Top Definition
(verb) To be extraordinarily courageous in the face of extreme pain and even risk of life. To power on beyond the comprehension of mere human beings.

A more courageous version of man up.
The pain from the Man o' War stings was unbearable and paralysis from the toxins was setting in, but she made herself Nyad-Up and swam 82 nautical miles across the Florida Straits.
by FlKeysKevin September 29, 2011

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