Jockeys and briefs, tighty-wighteys and knickers … Welcome to the world of smalls. That’s one handy British nickname (strutting only its plural self in the undieworld) for undergarments that clothe our nether regions: what we all call underwear on both sides of the Atlantic. That’s about the extent of our agreement when it comes to naming our drawers and briefs: Brits and Americans tend to part company when chatting about their undies and their intimates, even though we generally understand each other’s proverbials…