adverb taking the 'to' particleadverb (fukushi)adjectival nouns or quasi-adjectives (keiyodoshi)noun or participle which takes the aux. verb surunouns which may take the genitive case particle 'no'onomatopoeic or mimetic wordcolloquial
1.
in high spirits; raring to go; overflowing with youthful energy; acting all cute and charged up; brimming with youthful enthusiasm