Definition of blood chit in English:

blood chit

noun

  • 1Military slang. A message carried by aircraft (also occasionally military) personnel, designed to protect them from harm if stranded in hostile territory, typically by offering a reward to local people for helping the service personnel to survive, or to return to their own lines unharmed. Also called gooly chit (British).

  • 2British slang. A document signed by a person before embarking on a flight, surrendering the right to take legal action in the event of an accident (now historical). Now in extended use.

Origin

1920s; earliest use found in World's Work. From blood + chit.

Pronunciation

blood chit

/ˈblʌd tʃɪt/