Wide-eyed, adrenalin-filled psycho
grimace on one's face as you charge in to battle/a fight/game of
chicken. Exemplified by "Full
Metal Jacket".
HARTMAN
Let me see your
war face!
JOKER
Sir?
HARTMAN
You've got a
war face? Aaaaaaaagh! That's a war face. Now let me see your war face!
JOKER
Aaaaaaaagh!
HARTMAN
Bullshit! You didn't convince me! Let me see your real war face!
JOKER
Aaaaaaaaaaaaaaaaagh!
HARTMAN
You didn't scare me! Work on it!