Meltdowns

Josh, being autistic, is easy to agitate and finds himself in situations where he has meltdowns. Josh often has meltdowns when he is fry-bagged.

When Josh has a meltdown, he will usually repeat his catchphrases, bite his hand, hit his head, scream constantly, and become very aggressive toward trolls.

This article contains a comprehensive list of Joshua Block's meltdowns/incidents/crashouts, including a link to the main page about the incident.