The story
From waterproof + pants.
Etymology from Wiktionary, CC BY-SA 4.0.
waterproof pants
Today it means: Synonym of plastic pants (“an undergarment worn over a diaper/nappy (or underwear) to prevent leakage.”). Full definition →
Today it means: Synonym of plastic pants (“an undergarment worn over a diaper/nappy (or underwear) to prevent leakage.”). Full definition →
From waterproof + pants.
Etymology from Wiktionary, CC BY-SA 4.0.