More commonly known as Fuck Me Boots. Comes from abbreviating Fuck Me to FM, which is also an abbreviation of the radio broadcasting band of Frequency Modulation. Normally used when talking around persons who may or will be offended by the term Fuck Me Boots.

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.