white elephantˌwhite ˈelephant noun [countable]Word Origin
WORD ORIGINwhite elephant
Origin:
1800-1900 From the supposed practice of the King of Siam, who gave to people he did not like a white elephant, which cost a very large amount of money to keep
Examples
EXAMPLES FROM OTHER DICTIONARIES
The dam has become something of a white elephant.
EXAMPLES FROM THE CORPUS
Cake and white elephant stalls plus a grand prize draw.
More spaces are needed at less cost not another white elephant office block.
Saracen ambassadors bring Charlemagne a white elephant complete with exotic trappings.
There's this picturesque white elephant development on the Costa del Sol, apparently going for a song.
What do you do with a huge white elephant like that?
something that is completely useless, although it may have cost a lot of money: When the theatre first opened it was widely regarded as a white elephant.