IS is IS. "Is meaning equal" is tautology. Is is simply is.

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.

Conjunction of I and was for I was.

Pronounced ‘Aiy’ ‘Ess’
Short for Infatuated Spaz. A person who is so besotted by someone that they don’t mind being verbally or physically abused by them.

A word that, despite being among the most common in the language, not everyone is sure of the meaning of.

In slang, "is" is used to replace "are"

3rd person singular of "to be"