A useful idea should survive being explained without its most exciting description.

Exciting language can carry an idea that has very little of its own. Strip out the striking phrase and the borrowed vocabulary, describe the thing plainly, and what remains is the actual content. Sometimes that is a solid useful point. Sometimes there is almost nothing there, and the energy was all in the packaging.

Take an idea you have been enthusiastic about and explain it in flat words to someone who owes you no interest. Watch whether it still holds up without the phrase you liked. If it collapses, you have lost nothing worth keeping.