The Idea of Fancy Play Syndrome (FPS) came from “The Mad Genius of Poker” Mike Caro for overly complex plays that are simply not profitable in the long term.
You should never deviate from the standard play unless you have a good reason.
If the only way to beat an opponent is with level of deception use deception otherwise the standard play is best.
At low levels there is no need for FPS and if your play is ego driven it is a disastrous combination.
See my bust out from the WPT below FPS gone bad!