Origin of fadeaway
Examples from the Web for fadeaway
Joe calmed himself by an effort, and then sent in his fadeaway.
He shut his teeth, and, trying to keep away from his face the shadow of pain, threw his fadeaway to Rad again.
Then Joe tried a fadeaway, and Rose fell for it, swinging himself halfway round with the force of his blow.Baseball Joe, Home Run King|Lester Chadwick
With the next batter Bert made unsparing use of his fadeaway, and struck him out with little trouble.
If I were to give it a name at all, I’d call it a ‘fadeaway.