also: いくさけしょう
noun
warpaint
Refers to paint applied to the face or body before battle, often for intimidation or ritual purposes. Can be used literally or figuratively.
戦士たちは戦化粧を施して戦いに臨んだ。
The warriors applied warpaint and went into battle.
彼女の派手なメイクはまるで戦化粧
Her flashy makeup is just like warpaint.