A yellow face with an open mouth, the top of its head exploding in the shape of a brain-like mushroom cloud. A visual form of the expression mind blown, it may represent such emotions as shock, awe, amazement, and disbelief.
Apple’s design features the same expression as its 😦 Frowning Face With Open Mouth.
📅 Exploding Head was approved as part of Unicode 10.0 in 2017
under the name “Shocked Face with Exploding Head”
and added to Emoji 5.0 in 2017.