The sound that the roadrunner makes

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.

Meep meep, (also known as meepus meepus) is the representation of the shout 2-3 friends use in a cult-like chant while operating a small vehicle

Sound you make when someone says something t-totally fucking stupid; as to imitate the sound of a retard bus.

the sound made while grabbing a nice pair of female breasts.

Meep Meep is the sound bunnies make when they are on their way retrieving food.

the single greatest phrase in the english language can be used as
1) an informal greeting
2) a way of breaking awkward silences
3)a replacement for any word phrase or letter in the world