The term "Back Door" could be used for both a slider, and a curve ball. It refers to a baseball that was thrown outside of the strike zone, misses the plate but, is caught behind the plate, and called a strike. Technically it should be called a "ball" because it never crosses the plate but, because it is caught behind the plate and appears to be a strike to the umpire; It is said it came in through the "back Door"
Protestors
Only as a descripted term, such as "the baserunner should not go wide of the bag when rounding the bases", or, "pitcher should go wide (pitch outside) to this hitter".
what term was given to tar and pitch
Strike breakers
It means when the baseball is thrown on a line, like when it is thrown strait without a loop or rainbow.
Another term for the word pitch is angle. Other synonyms for pitch include point, degree, and slope.
strikes
Transform Boundaries
They are called scabs.
a mark
A blastment is an archaic term for a sudden strike or injury.