Examples:

• Absence is the best way to distinguish real love from a flash in the pan.
• It would meet all those who say that the swing is only a flash in the pan.
• The brutality of the decision, the number of workers involved, have created a new awareness among the unions, the governments and the Commission and I hope this will not prove to be a flash in the pan.
• It was not a flash in the pan.
• Just a flash in the pan.
• Or a flash in the pan.
• You know, that beard of his isn't a flash in the pan or anything.
• Well, it wasn't just a flash in the pan, was it?
• The Voice, as he was nicknamed, was no flash in the pan.
• I always knew you guys were more than just a flash in the pan.