Exploding Head
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 ๐ฆ 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.