be a (something) through and through

To be a particular thing to the utmost degree. Oh, she's French through and through—she would never leave her country. I'm a student through and through, which is why I'm now pursuing a doctorate. Dad's a scientist through and through, so he can't relate to your artistic sensibilities.

See also: and, through

See also:

Londoner
be a (something) to (one's) fingertips
as the day is long
as (something) as they come
as as they come
as clever, stupid, etc. as they come
do something for all you are worth
for all (one) is worth
for all one is worth
for all someone is worth

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