when your reciving a blow job and then taking a dump on the girls chest, an then when your about to cum you pull out and try to make zig zags on the topp of the shit.

Then grab her by the ankels and lift her up so the shit rolls down into her face from her chest, and that breif moment she grins and says oh my god thats gross.

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.