His heart went pit-a-pat.    From Wordnet, Princeton University. 

He came running pit-a-pat down the hall.    From Wordnet, Princeton University. 

She laid down her needlework; her heart was going pit-a-pat.    From Wordnik.com.  [Australia Felix] Reference

How my heart then went pit-a-pat, to speak in the female dialect.    From Wordnik.com.  [Clarissa Harlowe] Reference

His poor old heart went pit-a-pat at anything like the sound of a rat.    From Wordnik.com.  [How to Tell Stories to Children, And Some Stories to Tell] Reference

And there he was, alone in the dark with Papa, his heart going pit-a-pat.    From Wordnik.com.  [Ultima Thule] Reference

Her eyes smiled bravely into his, although her heart was going pit-a-pat.    From Wordnik.com.  [Madge Morton's Victory] Reference

If my reply make his heart go pit-a-pat with joy he can give me a gold piece.    From Wordnik.com.  [The Faery Tales of Weir] Reference

Rain was falling, pit-a-pat, and he was without cover on a wet patch of grass.    From Wordnik.com.  [How to Tell Stories to Children, And Some Stories to Tell] Reference

I thought, "Wahb at last," and my heart went pit-a-pat as I pointed it out to Nimrod.    From Wordnik.com.  [A Woman Tenderfoot] Reference

Gnat was nearly frightened out of his little senses, and his little heart went pit-a-pat.    From Wordnik.com.  [How to Tell Stories to Children, And Some Stories to Tell] Reference

And all the time, there was a faint but steady pit-a-pat, pit-a-pat, like the sound of tiny feet running.    From Wordnik.com.  [Drums of Autumn]

Then Carl felt his heart go pit-a-pat, and all the snow wreaths on the trees seemed to turn to bridal flowers.    From Wordnik.com.  [The Faery Tales of Weir] Reference

Red Lion Street (the northern end now known as Lamb's Conduit Street) was reached she paused and her heart went pit-a-pat.    From Wordnik.com.  [Madame Flirt A Romance of 'The Beggar's Opera'] Reference

But the thing that makes my heart go pit-a-pat is how smart he is, what a diplomat, how he understands the workings of the state.    From Wordnik.com.  [Firedoglake » Feeling Safer?] Reference

His poor old heart went pit-a-pat as he staggered down the attic stairs and he kept on dabbing at his forehead with a handkerchief.    From Wordnik.com.  [The Magician's Nephew]

In spite of her protest of not caring, Lavinia's heart went pit-a-pat when she entered the hot, frowsy, greasy air of the coffee house.    From Wordnik.com.  [Madame Flirt A Romance of 'The Beggar's Opera'] Reference

I am going to feel your little heart go pit-a-pat.    From Wordnik.com.  [Girls of the Forest] Reference

Suddenly he fancied he heard feet outside going pit-a-pat.    From Wordnik.com.  [Fairy Tales of Hans Christian Andersen] Reference

But every time she met a bee, her heart went pit-a-pat.    From Wordnik.com.  [The Adventures of Maya the Bee] Reference

"Are not babies," I put in, with my heart going pit-a-pat.    From Wordnik.com.  [Fifty-Two Stories For Girls] Reference

It was this very chap who is so pit-a-pat at explainin 'it.    From Wordnik.com.  [The Ocean Waifs A Story of Adventure on Land and Sea] Reference

Her face was aglow with excitement, her heart going pit-a-pat.    From Wordnik.com.  [The Captain of the Kansas] Reference

Now, as I write, my heart goes pit-a-pat, thinking of you, Rosarito; and.    From Wordnik.com.  [The Land of The Blessed Virgin; Sketches and Impressions in Andalusia] Reference

But there was no outward sign that Sonny Boy's heart was going pit-a-pat.    From Wordnik.com.  [Sonny Boy] Reference

Do you hear that, then -- that pit-a-pat, like sheep going by on the street?.    From Wordnik.com.  [The Manxman A Novel - 1895] Reference

So his heart went pit-a-pat, pit-a-pat as he wondered if Butcher had seen him.    From Wordnik.com.  [Whitefoot the Wood Mouse] Reference

His heart went pit-a-pat as her fingers, moist from the suds, brushed his chin.    From Wordnik.com.  [Blacksheep! Blacksheep!] Reference

Jessie's cheeks bloomed like roses, and her heart went pit-a-pat with joy-beats.    From Wordnik.com.  [Jessie Carlton The Story of a Girl who Fought with Little Impulse, the Wizard, and Conquered Him] Reference

Mary blushed scarlet, and her heart went pit-a-pat in the most alarming fashion.    From Wordnik.com.  [The Hero] Reference

Hit the comments and tell us about the gizmos that make your heart go pit-a-pat.    From Wordnik.com.  [BNET Articles] Reference

"And your little heart used to go pit-a-pat, so that you could hardly count the change?".    From Wordnik.com.  [King Coal : a Novel] Reference

All the time I felt my heart beating pit-a-pat, for thinking what I should do if I missed.    From Wordnik.com.  [Snow Shoes and Canoes The Early Days of a Fur-Trader in the Hudson Bay Territory] Reference

"Oh, making it so that you squirm and tingle and your heart goes pit-a-pat," replied Nancy.    From Wordnik.com.  [Girls of the Forest] Reference

When we saw the lights in the windows at home, you may guess how our hearts went pit-a-pat.    From Wordnik.com.  [The Life and Letters of Maria Edgeworth, Volume 2] Reference

Nevertheless her heart went pit-a-pat, and she withdrew a little deeper into the flower-bell.    From Wordnik.com.  [The Adventures of Maya the Bee] Reference

If my heart went pit-a-pat when I dismounted and walked to the veranda it must have been because of anticipation.    From Wordnik.com.  [A Virginia Scout] Reference

My heart was going pit-a-pat, pit-a-pat, and I could hardly breathe, but I had no sensation of pain except in my chest.    From Wordnik.com.  [High Adventure A Narrative of Air Fighting in France] Reference

And he tossed his horned head and pawed the ground with his great hoofs in a way that made Sonny Boy's heart go pit-a-pat.    From Wordnik.com.  [Sonny Boy] Reference

You know you are dying to go, and your heart is going pit-a-pat like anything. ".    From Wordnik.com.  [The Children of Wilton Chase] Reference

"I know it's all fake, but just the same, it makes my little heart go pit-a-pat.    From Wordnik.com.  [King Coal : a Novel] Reference