Shortened to TBP

A casual sex partner of the female persuasion.

This is someone who is not girlfriend material but good for some late night activity, like Taco Bell.

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.