Definitions for war paint
Random House Webster's College Dictionary
paint applied by American Indians to their faces and bodies before going to war.
Informal. makeup; cosmetics.
Informal. full dress; regalia.
Origin of war paint:
adornment consisting of paint applied to the face and body of certain Amerindians before a battle
full ceremonial regalia
makeup, make-up, war paint(noun)
cosmetics applied to the face to improve or change your appearance
Pigments ritually applied to the face and/or body of a Native American warrior prior to going into a battle.