finn duffy is a fat ginger cunt who likes to suck his dads dick on tuesdays and wednesday and thursdays and fridays and saturdays and sundays and mondays

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.