The 'Pen Girl Incident' refers to a viral series of eerie memes featuring an illustration of a girl holding a pen, which is often digitally distorted to create a sense of psychological horror. Originally based on an artwork by the Japanese artist Nekomata, the image became a staple of the 'Incident' meme subgenre, where specific dates and cryptic descriptions are added to evoke a feeling of dread or a creepypasta-style narrative. It is commonly used on platforms like TikTok and Twitter to represent moments of sudden, disturbing realization or to participate in the void meme community by transforming innocent visuals into nightmare-inducing content.