E1.0 grimacing face, Emoji

A yellow face with simple open eyes showing clenched teeth. May represent a range of negative or tense emotions, especially nervousness, embarrassment, or awkwardness (e.g., Eek!).

Resembled Beaming Face With Smiling Eyes on Apple iOS prior to 2016. Apple’s design for Cold Face features the same mouth. Samsung's design previously featured more puckered-looking lips.

On Snapchat, this emoji next to a contact denotes that you send the most snaps to the same person that they do., i.e., you share a #1 Best Friend.

Grimacing Face was approved as part of Unicode 6.1 in 2012 and added to Emoji 1.0 in 2015.

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