'Trunks' in the Bible

You shall make for them [white] linen undergarments to cover their bare flesh, reaching from the waist to the thighs.

while they (Ammonite prophets) see false visions [of peace] for you, while they divine lies [of escape] for you—to place you [of Ammon] on the headless bodies of the wicked who are slain, whose day has come, whose time of the final punishment is here.