wonderlandA land of wonders or marvels
Definitions:
An imaginary or real place full of wonders or marvels"Alice discovered a magical wonderland."
rabbitholeA bizarre or difficult state or situation
Definitions:
A place into which one wanders or enters spontaneously or carelessly"She fell down a rabbithole."
madInsane or crazy
Definitions:
Displayed or characterized by irrational behaviour"The Mad Hatter is a popular character in the story."
caterpillarLarval state of a butterfly or a moth
Definitions:
A segmented worm with legs on each segment that is the larva of a butterfly or moth"Alice had a conversation with a caterpillar sitting on a mushroom."
cheshireRefers to the Cheshire Cat, a fictional cat popularized in Lewis Carroll's Alice's Adventures in Wonderland
Definitions:
Denoting a proverbial grin"He disappeared like a Cheshire cat."