I figured that my example, a news headline containing the extraordinarily garden-path-leading word sequence proposed to by a lightning strike, met the definition squarely. But your mileage may differ (you can comment below). I'm merely a linguist; nobody put me in charge of the development of the lexicon or the emergence of new words or phrases. Even with phrases coined or publicized here on Language Log (eggcorn, snowclone, etc.), ultimately all I can do is follow wherever I am led by the sure tread of the expert native speakers who give words and phrases their currency and their stability.
Geoff Pullum at LL