When a woman won't leave a partner or group of friends until she has found a suitable replacement, like a monkey swinging from one vine to another, generally because she can't stand being alone.

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.