ikkimasho
Five in Japanese is go.
I'm thinking of 3 options:(1)yipee(2)mama mea(3)letsa go those are the ones i think it is.
The verb "to go" is 'iku'.
Dēto
Sayonara
"nihon" : Japan (country)"nihon go" : Japanese Language
You can go to Google translator
Bengoshiben-go-shee
kabusu gambare
語彙 /go i/.
go to LDS.org
ラルゴ or rah-you-go