one weird trick

Etymology
One of various collocations that were found empirically in A-B testing to have high clickbait effectiveness on humans, at least at the time when they were not yet hackneyed. The choice of words was driven by their clickbaiting power.

Noun

 * 1)  A supposed unusual and little-known solution to a problem, offered in deceptive and misleading advertising on the Internet.

Hypernyms

 * trick