A person who just enter the internet and feels like the man who discovery everything.
One without Netiquete.
Guy who send tons of junk to all his contacts.

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.