Noun
pink elephant (plural pink elephants)
(informal) A stereotypical hallucination, particularly one brought on by drinking alcohol.
I remember lying by the side of the road watching the pink elephants dancing by.
Above, members of the tour group explore the Lakenenland’s campfire area, which also features a cheerful pink elephant, complete with polka-dotted ears. Source: Internet
How many more busses filled with hospital beds could we have on the road instead of this pink elephant? Source: Internet