When people post videos for a word on Urban Dictionary that has absolutely nothing to do with the word or phrase.

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.

spamming someone over an instant messenger (AIM, MSN, YAHOO) with loads of links from YouTube. They'll give you a link and give you another after 10 seconds without even letting you finish watching the first one.