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1.
A politicaly correct term for guts
Though Mohamad Ali may seem to have intestinal fortitude he is not healthy.
od uživatele Light Joker 19. Březen 2004
 
2.
Mental Toughness
Navy SEALs possess intestinal fortitude. Frequently heard during Hell Week.
od uživatele DeepSix66 15. Říjen 2013