Red Shirt Definition

noun

A minor character or member of a group, especially one who is expendable or likely to be killed.

Wiktionary

A sailor whose job it is to handle ordinance on an aircraft carrier .

Wiktionary
Alternative form of Red Shirt.
Wiktionary
Alternative form of Red Shirt.
Wiktionary

Used other than figuratively or idiomatically: see red ,‎ shirt .

Wiktionary