‘I’m traumatized’: Customer pulls into drive-thru. Then the worker gives him a ‘squirrel smile’

Squirrel smiles are trending on TikTok. And while you may not be familiar with this particular nomenclature, you probably have encountered this facial contortion before.

The term is used to describe the type of grimace that occurs when a person only bares a portion of their teeth through pursed lips.

As this TikTok user writes, they've "been doing it since [they] were a kid."

Subsequently, she shows off this type of grin while looking directly into her camera lens.