when you're nailing a girl and about to nut, flip them on their belly, rope all over their back, and blow you're pre-shaved pubes across their entire backside. then do her doggy-style while pounding your chest with your fists, making your best gorilla love calls.

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.