"Flop them all together," suggested the Wizard.
Her heart did a flip-flop as Alex came through the door, dressed in a blue western shirt and denim jeans.
Whatever the cause, her heart did a flip-flop and warmth flooded her face.
"Which wings must I flop first?" asked the cab-horse, undecidedly.
Still the cannon balls continued regularly to whistle and flop onto the ice and into the water and oftenest of all among the crowd that covered the dam, the pond, and the bank.
Her heart did a flip-flop and she turned her hand over so that her palm touched his warmly.