In the old Irish Language, "Curadmir" means the "champion's portion". Warriors who have shown extraordinary examples of bravery would have the right to have the best part of the meat in any feast.
Actually, the same tradition exists in the Mughal Empire. Here is a excerpt from Baburnama:
"That day, Qasim Beg Quichin, the Lord of my Gate, outstripped the rest of the enemy and entered the fray with his sword. Sultan Ahmad Tambal Mughal, and Muhammad Dost Taghai got in also. But Qasim Beg Quchin won the champion's portion."*
It looks like the rules of getting the champion's portion were better defined in the Mughal Empire. A warrior should first decide upon a target, outdistance his tribe and get the target with his sword.
North American Natives (touching the enemy in a fight) and Ottomans ('serdengecti's and 'dalkilic's) had their own merits for brave warriors too.
*Baburnama, translation by Annette Susannah Beveridge, Penguin Classics