As a male's penis is in the female's vagina, the male chooses not to thrust. The Female then clenches the vagina and continues to have intercourse with the stationary man, simulating the feeling of a vigorous handjob.

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.