What is "jumping up and down"

Usage examples of "jumping up and down".

As the procession turned each bend, staying as close as possible to the inside curve where the current was least, great crowds of imps swarmed on the shore, running like ants, waving, jumping up and down and cheering.

His black moustache was jumping up and down like crazy as he spoke.

Behind her back, Malfoy did a buck-toothed imitation of her jumping up and down in eagerness to answer a question.

Ron retaliated by doing a cruel but accurate impression of Hermione jumping up and down in her seat every time Profe s sor McGonagall asked a question, which Lavender and Parvati found deeply amusing and which reduced Hermione to the verge of tears again.

As they recrossed the entrance hall with the rest of the Hogwarts students heading for the Great Hall, Harry saw Lee Jordan jumping up and down on the soles of his feet to get a better look at the back of Krum's head.

Joat jumping up and down, gurgling with laughter while tears streamed down her face, as well as Channa's, and Seld crowed like he'd turned rooster.

A lot of Negroes hate my guts and start jumping up and down and organizing protest rallies as soon as I come over the horizon, but I figured you would be able to see things a little more clearly.

I had this cluster of young enthusiasts on my hands, and they were all jumping up and down and frothing at the mouth and begging me to mount an assault on the walls.

Mr Wonka was jumping up and down in the back of the boat and calling to the rowers to row faster and faster still.

I don't want to have Bren jumping up and down every time somebody looks crosswise at her.