on one's head prepositional phrase2 •Assumed or borne, as a responsibility or something blameworthy.cleopatra [vehemently] He has shed the blood of my servant Ftatateeta. On your head be it as upon his, Caesar, if you hold him free of it. — 1898 •Assigned by government authorities as a bounty or penalty.[M]y father is a man / Outlawed and exiled, under ban; / The price of blood is on his head, […] — 1810
