I’ve been a developer (primarily back end) and I never heard the term toast until now. Perhaps I’m just simple, or maybe I stopped paying attention after “hamburger menu.” I’m probably too old to hang out with the cool kids anymore.
As a developer who started with jQuery and then Backbone.js it seems like frontend dev has become very rich but at the same time has developed some weird esoteric rituals and practices which don't seem to go with conventional software engineering.