You are mentally deranged.

Lily was mentally deranged!

Are you mentally deranged?

Lily was mentally deranged.

Lily was mentally deranged!

I'm glad I was caught. I was mentally deranged.

Persons who are mentally deranged or habitually inebriated;

You might say that Lily was mentally deranged.

(a) Ghana: “Idiocy, imbecility, mental derangement or disease affecting the mind”;

While Luke's learning the fine art of seducing the mentally deranged upstairs,