yellow shirt

Short definition from Wiktionary

Noun

1. 1
   A sailor on an aircraft carrier responsible for directing aircraft.
2. 2
   Alternative form of Yellow Shirt.
3. 3
   Used other than figuratively or idiomatically: see yellow, shirt.
4. 4
   A member of the Popular Alliance for Democracy (PAD), the organization responsible for the coup d'etat in Thailand in 2006.
5. 5
   Alternative form of yellow shirt.