BTW, good umpiring practice says don't describe a pitch except as ball or strike, unless asked. I usually treat "deep" as a vertical dimension, as in water. If I call it a ball because it was above the shoulder line and the pitcher or catcher says "Deep?", I just nod.
It's actually high, but if you say "high" all slow pitch players think that means illegal.
One time after a very "high" legal pitch that landed in front of the catcher, the pitcher said "Where was that?". I then pantomined climbing a ladder and an axe swing way over my head. The pitcher cracked up, questioned no more and has been friendly ever since.