A person who constantly cancels reservations, appointments or engagements. This person is normally considered rather flaky as well.
Ahh, Frank Black is scheduled to arrive today at 2:00pm. Due to his cancellitius, it is likely he will call in to cancel once again or just fail to arrive completely.
Person that harasses the crap out of regular people just for saying something not pc and threatening to hurt them because they unawarely did a “micro aggression.“ PC principal from South Park is a perfect example of a canceller.
These cancellers harassed this one streamer I love watching just because she played a video game that was deemed “problematic.”