The story
From a trademark for a utensil that creates jaffles, presumably from waffle.
Etymology from Wiktionary, CC BY-SA 4.0.
jaffle
Today it means: A type of toasted sandwich that is sealed around the edge (in one piece, and not separated in the centre), it has a filling, for example an egg. A toastie or Breville is separated with a diagonal crease. Full definition →