Yanamino手の舞い足の踏むところを知らず
てのまいあしのふむところをしらずtenomaiashinofumutokorooshirazu
expression
- (being so overjoyed that) one cannot help but dance
- unable to contain one's excitement
- jumping for joy
- being in such a panic that one doesn't know what to do
- being completely flustered