Fun entertainment without feelies or even realism

I just really wanna read a book with an entertaining plot that is not afraid of being weird or unrealistic. I dont want to be forced to care about the characters. Save the cat or dont, i dont care.

Ive read and loved The Hitchhikers Guide to the Galaxy,

Which is a great example.

But I've also read I Have No Mouth And I Must Scream, which is funnily enough also a book that scratched that specific itch