to the core

to the core

Fully or completely; in the most essential or inherent way. That company is just rotten to the core—I wouldn't be surprised if all the employees were embezzling money!
See also: core

to the core

all the way through; basically and essentially. (Usually with some negative sense, such as evil, rotten, etc.) Bill said that John is evil to the core. This organization is rotten to the core.
See also: core

to the core

COMMON You use to the core after an adjective to make a statement stronger, especially a statement describing how someone feels or describing the character of someone or something. Father Godfrey Carney said the community was shocked to the core. The insurance industry is rotten to the core. Loxton, the artist, was English to the core yet she was inspired by France.
See also: core

to the ˈcore

very much; in every way: He’s a Welshman to the core.They believe that our society is rotten to the core (= completely bad).
See also: core
References in classic literature ?
But these experiences of the morning have shaken me to the core, and I must rest awhile.
Typically, a substantial portion of this acquisition premium can be attributed to the core deposit intangible asset.
These simulations revealed that for the materials considered in the real castings, the buoyancy force is the major contributor to the core distortion.
When winding film all the way to the core edge, a short core will make the film protrude over that edge - often cause for a roll to be scrapped.
While this wasn't possible at ICC due to the core package size for engine blocks, International-Waukesha accommodated the bedplate package by expanding the three coldbox core machines to use larger tooling and increase blow capacity.
provide sufficient mass to the core sections to allow proper cooling during solidification;
The solids in the coating must be measured because they are refractory materials that provide protection to the core.