Figment of the imagination and Pink elephants

Pink elephants and figment of the imagination are semantically related. In some cases you can use "Pink elephants" instead a noun phrase "Figment of the imagination".

Pink elephants noun - Any visual hallucination arising from heavy drinking.

Figment of the imagination and pink elephants are semantically related. Sometimes you can use "Figment of the imagination" instead a noun phrase "Pink elephants".