tua culpa noun 1phrase 1forms 1 noun1 •An instance of blaming someone else.The president’s “tua culpa” (you’re at fault) only admitted to being caught, and begrudgingly at that. — 1998 phrase1 •Your (singular) fault, due to your error; you are to blame.Now, regarding [Joe] Heller’s treatment of Toby Roth in the cartoon of Aug. 5—Tua culpa. — 1992 formstua culpas
