(adjectival) In an exhaustive and pervasive manner.
She's a born leader from top to bottom.
Synonyms: through and through, to the core
(adverbial) In the manner of conducting a remedy, search, or investigation (etc.) that is thorough and complete.
They restored the car from top to bottom.
Synonyms: completely, thoroughly, through and through
Understand from top to bottom what the effort requires. Bill Toomey
Once emotions are set in motion, and men pitted against men along these unspoken lines, you will have the kind of warfare that will split the nation from top to bottom and undo Malaysia. Everybody knows it. I don't have to say it. It is the unspoken word! Lee Kuan Yew
Then I knew that the sign I had asked for was not a little thing, not a passing nod of recognition, and a phrase came back to me from my childhood of the veil of the temple being rent from top to bottom. Evelyn Waugh
You know, sometimes the little victories that I have throughout the season are not necessarily obvious on the track. Maybe they're another aspect of what I'm doing, winning little victories here and there to get everything in line to be able to perform from top to bottom on race day. Danica Patrick
Nobody wants to see a bejeweled pregnant lady from top to bottom. Busy Philipps
We have to take personal responsibility. The government didn't do its job when the institutions needed to be held accountable. If you see something's wrong, you can't just turn the other way. The regulatory system was totally rotten from top to bottom. Harry Markopolos