An old caretaker where I worked said that when he was young French knickers were called 'wide open Wednesdays' because of their ease of access.
I can see his point.
I'm curious to know what brazilian thongs are too.
For me only ever thongs and only ever in black. If I got hit by a bus and the Dr was cute, I'd be mortified if I weren't wearing (in)decent undies.
H.x