to smear the lips with blood when taking an oath (idiom); to swear a sacred oath
trad. 歃血為盟
Also written 歃血為盟【shà xuè wéi méng】
to smear the lips with blood when taking an oath (idiom); to swear a sacred oath
trad. 歃血為盟
Also written 歃血為盟【shà xuè wéi méng】