to repeatedly leap into the air and come back down, usually out of excitement, restlessness, or frustration

बार-बार ऊपर और नीचे कूदना, आमतौर पर उत्साह, बेचैनी, या निराशा के कारण

English Usage: The children were jumping up and down with excitement when they saw the ice cream truck.

Hindi Usage: आइसक्रीम वैन देखते ही बच्चे उत्साह में उछलने-कूदने लगे।