Usage of "what's more"

In addition to what has been said.

Usage of what's more in English

But the elements of it, what's more important, what's really difficult here. 
 The new yorker 

Both happen to be fabrications, and what's more, oversimplify his formative years. 
 The new yorker 

The fellow had a key; and what's more, he has it still. 
 Strange case of Dr. Jekyll and Mr. Hyde 

And what's more, I shall ask him to sing in the choir. 
 West Wind Drift 

And what's more we will be the first to navigate the creek. 
 Canoe Boys and Campfires; Or, Adventures on Winding Waters 

And what's more, you know what you can do with your club! 
 The Irish Times 

And what's more I think your peculiar doings will bear looking into. 
 The Pony Rider Boys in the Ozarks; Or, The Secret of Ruby Mounta... 

Nobody ever heard him squeal yet and what's more nobody ever will. 
 The Yukon Trail: A Tale of the North 

The girl was about, you see, and what's more, my wife was. 
 The Nether World 

And what's more, Bob Grand ought to get it good and hard. 
 The Rose in the Ring 

And, what's more, I'll tell it briefly, without trimmings- Imeanwithout unessentials. 
 The Best Ghost Stories 

And what's more, you can't prove that what I say isn't true. 
 The Tale of Ferdinand Frog 

He's got no religion, and what's more he's always talking against religion. 
 Thyrza 

An' what's more, I don't want ye to ask any fool questions. 
 Jess of the Rebel Trail 

And what's more, you'll have something yourself to settle with the State! 
 The Riverman 

And what's more, you know where Binhart is, now, at this moment! 
 Never-Fail Blake 

Meanings of what's more in English