When messaging someone, specifically snapchat but also applying to other social media platforms such as Instagram, this is the act of replying to their message, then deleting your reply and not replying anything else, leaving them with nothing other than a notification saying that a message has been deleted. A similar effect to leaving someone on read, but to a stronger extent.

A phrase to describe someone who is cognitively degenerating. Synonym of "going off the deep end". Can have varying degrees of severity.

Reference to the song "Hey You" by Pink Floyd. The line "and the worms ate into his brain" makes no sense in an otherwise linear and literal narration throughout the lyrics.