We always called them thongs when I was a kid but that name seems to have been re-appropriated to an entirely different piece of apparel. I’ve heard them called jandals or (warning: racist!) jap flaps, and other names I can’t recall at the moment.
I know you’ve all worn them. The basic flat, foot shaped piece of stiff foam rubber with straps on either side that meet at the front in a little stem that goes between your big toe and the rest of your toes. (Boy, I’m not going to win any prizes for description today!)
So what do YOU call them?
“non sunt multiplicanda entia praeter necessitatem”
– William of Ockham