There are some illegal moves that a pitcher can not do after he gets in position. Usually some sort of incorrect movement of the hands. But, balks are very rare. If one occurs, everyone moves up a base.
The acronym WHIP stands for Walks plus Hits per Inning Pitched. It's a statistic for pitchers, used for getting an idea of how many baserunners they allow (without accounting for errors, since they...
Yellow Hammer is a term for a curve ball that not only breaks but has a big drop to it. Another term for Yellow Hammer is a '12 to 6' curve ball. Other terms for a curve ball are 'yakker' and 'Uncle...