A sex move, highly improbable to pull off, but some may be able to receive. It is the act of inserting all 20 didgets into the recipients arsehole

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.