Very large knight's move
A variety of knight's move which goes even one line further than the large knight's move. Such a move trades greater speed and reach for more vulnerability.
The very large knight's move is often a good extension along the side (J: dai-dai-geima-biraki) – for more information, see Three-space extension and Three-space extension invasions.
The very large knight's move may also be used to approach a corner stone very loosely (J: dai-dai-geima-gakari).
A knight's move with four lines between the two stones would be called in Japanese: makadaidai or in Kanji, 摩訶大大 (Source: http://en.wikipedia.org/wiki/Maka_dai_dai_shogi)
It is not a go term though. Its use in shogi is due only to the fact that the people inventing the large variants were Buddhist priests. Maka is Sanskrit maha = big.