all of
all of {adj. phr.}, {informal}
1. At least the amount or number of; fully; no less than.
It was all of ten o'clock before they finally started.
She must have paid all of $50 for that hat.
2. Showing all the signs of; completely in. — Used with "a".
The girls were all of a twitter before the dance.
Mother is all of a flutter because of the thunder and lightning.
The dog was all of a tremble with cold.
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Source: A Dictionary of American Idioms
