The story
From something + -burger, by analogy with nothingburger.
Etymology from Wiktionary, CC BY-SA 4.0.
somethingburger
Today it means: Something believed or claimed to be unimportant that turns to be of some importance. Full definition →
Today it means: Something believed or claimed to be unimportant that turns to be of some importance. Full definition →
From something + -burger, by analogy with nothingburger.
Etymology from Wiktionary, CC BY-SA 4.0.