full of beans

1. Lively, energetic, in high spirits, as in The children were full of beans today, looking forward to their field trip . This expression has no valid explanation. [c. 1840]

2. Also, full of prunes . Acting foolish, talking nonsense, as in One cup of coffee won't hurt you—you're full of prunes . [c. 1930] Also see full of crap .

Example Sentences

The first time full of beans that revived it for good.

From Los Angeles Times

“He works for us as a detection dog. When he works he’s really focused and works really well but when he’s off work he’s a two-year-old Labrador, full of beans, jumping around.”

From BBC

She said she remembers Daniel as "an enigma, full of beans, full of life, from the day he was born just kind, caring, generous, loved by everybody."

From BBC

The six-times champion trainer is full of beans despite surprisingly poor record in race he has never won.

From BBC

Well-written, expertly performed, unashamedly odd and full of beans, this would seem to be the latter sort of enterprise.

From Los Angeles Times