A mental disorder whereby a person finds it incredibly awkward to interact over webcam with people they know or are quite friendly with.
Generally, people who suffer from Webcam Awkwardness are perfectly okay with complete strangers talking to them over webcam, but do not like friends awkwardly staring at them on the computer screen.
Lizzie would spend all day on Omegle having 10-second conversations with randomers from all around the world, but due to her severe case of Webcam Awkwardness, she could not bring herself to have a conversation over webcam with Patrick.