Stroke of genius American British noun phrase
A particularly inspired, clever, or innovative act, idea, or decision.
It was a stroke of genius when taking Japanese classes in my free time, that helps me find a fantastic job with high salary.
The decision not to eat after 8 pm is a stroke of genius, helps me to lose weight fast.
Changing a job when not sure what you are good at is not a stroke of genius.
It turned out to be a stroke of genius when the customers love our new design.
"Stroke of genius" is a noun phrase, so it often follows the (the definite article) or a (the indefinite article) within the sentence. Besides, we should use this phrase in the appropriate context.
If a person has the devil's own luck, he or she has extremely good luck.
A: Yesterday I won a $10 million lottery jackpot and today I won a car in a draw.
B: You have the devil's own luck.