It’s called the eephus pitch.
In a Nippon Professional Baseball game against the Hanshin Tigers, Hokkaido Nippon-Ham Fighters pitcher Kazuhito Tadano broke out one of the wildest pitches you will ever see.
On a 1-2 count, the right-hander confused both the hitter and the umpire with an eephus pitch. The ball’s high trajectory led to the umpire calling the pitch a ball, even though it looked like it ended up in the strike zone.
The umpire didn’t reward Tadano with a strikeout, which apparently left the catcher perplexed.
(via Bleacher Report)
From 1981, LaRoche strikes out Thomas on the eephus pitch, also called a lobber: