When you're backpacking through a foreign country and meet a girl who you fall in lust with. These relationships can last days, sometimes even weeks. People often mistake this for you being a serious relationship from all the selfies she is posting on creepbook. In actual fact, you're just banging her until you move onto the next country and find a new travel missus.

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.