But it sounds like you are looking for the actual meaning of Bokuho, which I hear stands for "Motion phase of the North". Doesn't seem like a word that's in their actual text, but probably something outside of it. Can't say because it's also mentioned in other martial arts in Wushu that gives it a different meaning and context.
http://junhongkungfu.com/wp-content/uploads/2013/11/photo-2-2.jpg
Bokuho is not direct meaning to the Chinese martial art tree of Piguaquan branches. Leo in Tekken, who is Bajiquan has a stance transition called Bokuho as well.