A Big Dick Lens (BDL) is any camera lens bought primarily by men in mid life crisis for the sake of male enhancement. A BDL is exorbitantly expensive, providing it's owner with a feeling of smug superiority. Examples include the Leica Noctilux-M 50mm f/0.95 ASPH., which retails for almost $12,000. Nobody needs a BDL for any useful purpose, it's purely for show.

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.