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blood brother

noun

Simple Definition of blood brother

  • : a man or boy who has promised to be loyal to another man or boy usually in a ceremony in which they mix their blood

Source: Merriam-Webster's Learner's Dictionary

Full Definition of blood brother

  1. 1 :  a brother by birth

  2. 2 :  one of two men pledged to mutual loyalty by a ceremonial use of each other's blood

blood brotherhood

noun

Examples of blood brother in a sentence

  1. He would never betray me—he's my blood brother.



1799

First Known Use of blood brother

1799


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