How to Memorize

I know him/her through and through

Analysis

 This expression emphasizes the completeness or thoroughness of something. It is commonly used in social situations, particularly when discussing the weather. For example, if you were caught in a heavy rain shower, you might say that you were 'wet through and through,' or if it was freezing cold you might say that you were 'cold through and through.'   

Social Examples (Basic)

1. Sandra may have lived in America for a number of years now, but she's Irish through and through.
2. I know David through and through. He would never do something like that!

Professional Examples (Basic)

1. I've studied the report through and through, but still can't find a satisfactory explanation for what went wrong.

Further Suggestions