face creep
Making a face so scary when you sneak into a photo that it looks like you're about to bite someone’s face off. It’s like you’re a monster from a horror movie.
Text: 'You pulled such a face in the group photo that I thought you were going to attack me.'
DM: 'You looked like a serial killer in that picture. What was your problem?'
Tweet: 'Face creep: the reason your friend thinks you’re a monster.'