Through and through
WordNet
adverb
(1) Throughout the entire extent
"Got soaked through in the rain"
"I'm frozen through"
"A letter shot through with the writer's personality"
"Knew him through and through"
"Boards rotten through and through"
WiktionaryText
Adverb
through and through
- Completely; entirely; fundamentally.
- He moved from Cincinnatti to San Francisco, but he's still a Bengals fan, through and through.