【One Idiom】Full of beans

Thank you all for  inspiring  and encouraging  me to coninute to  improve my English little by little, day by day.

Today, I would like to share a idiom "Full of beans".

full of beans

Meaning:
to be optimistic or enthusiastic
to be full of energy and in high spirits
to feel cheerful and lively

Example:

is always full of beans.

Origin
Originally, this phrase was known as “Full as Prunes” and then “prunes” was replaced with “beans”. The phrase originated in Europe in the 14th century when horses were fed with beans grown solely for fodder. After feeding the horse, the owners often noticed that the horses became quite energetic and lively. Hence the phrase originated to refer to this state of liveliness.