Board Thread:Questions and Answers/@comment-31952030-20190205161009/@comment-1429792-20190206223001

Im not sure but I think its just one of those action-ey type things anime characters say when attacking. Its unrelated to the Getsuga Tensho itself. I've heard him say it in the anime too. Well, I've heard someone in the anime say it anyway, might have been someone other than Ichigo. But it seems to be just one of those generic things characters say like lets go or what have you.