LEARNit Dictionary
blood brother
noun
/ˈblʌd brʌðə(r)/
UK
/ˈblʌd brʌðər/
US
1
a man who has promised to treat another man as his brother, usually in a ceremony in which their blood is mixed together
برادر خونی, برادر قسمخورده, برادر پیمانی