I just read in the newspaper that "Britain's love affair with the sandwich is growing as the average person munches their way through 155 butties a year…"
I know about bacon butties. And once during an evening meal in a pub in Devon my traveling companion put some chips on a piece of bread, folded it over, and began to eat. The barman, walking by, exclaimed "A chip buttie! I haven't seen one in ages." Then the two of them fell into a reverie of butties past.
My question: What makes a sandwich a buttie? Or is buttie simply a pet name for a sandwich?