The author implies that the idiom 'shelling out' has its origins in shell money, I'm pretty skeptical of that claim: https://wordhistories.net/2016/09/21/shell

The author implies that the idiom 'shelling out' has its origins in shell money, I'm pretty skeptical of that claim: https://wordhistories.net/2016/09/21/shell-out/ https://wordhistories.net/2016/09/21/shell-out/