The story
From billy (“male goat”) + cart, referring to the former practice of hitching a cart behind a large goat.
Etymology from Wiktionary, CC BY-SA 4.0.
billy cart
Today it means: A rudimentary child's cart; a soapbox car. Full definition →
Today it means: A rudimentary child's cart; a soapbox car. Full definition →
From billy (“male goat”) + cart, referring to the former practice of hitching a cart behind a large goat.
Etymology from Wiktionary, CC BY-SA 4.0.