If you say that some bright spark had a particular idea or did something, you mean that their idea or action was clever,or that it seemed clever but was silly in some way.
[British, informal]
'Why not give out one of the cybercafe's email addresses?' suggested one bright spark.
Some bright spark turned the heating off last night!
bright spark in British English
(braɪt spɑːk)
noun
ironic
a clever person; a person with a bright idea
'Why not give out one of the cybercafe's e-mail addresses?' suggested one brightspark.
Some bright spark turned the heating off last night!
bright spark in British English
British usually ironic
a person who appears clever or witty
some bright spark left the papers next to the open window
See full dictionary entry for spark
Examples of 'bright spark' in a sentence
bright spark
Some bright spark gives tickets to a brass band and drummers.
Times, Sunday Times (2008)
It was the one bright spark of squalid pessimistic nihilism in the week.
Times, Sunday Times (2015)
He is now estranged from his family so she has been the one really bright spark in a dark life.
The Sun (2015)
You will have some bright spark ideas linked to running a business from home - in your spare time at first.
The Sun (2008)
Bright sparks have an idea, the idea grows, a larger firm waves money in their faces.