When engaing in a debate and a person says something so outlandishly stupid, incoherent, or contradictory, that their opponent is left utterly speechless and dumbfounded. Usually used as a last last resort by somebody who's losing a debate and who knows his premise is invalid.

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.

When the ass cheeks bang the thighs and he hits the final blow