To move erratically by jumping. / To move from side to side, or fidget e.g. with nervousness.

(idiomatic, derogatory) Thinking or acting as if one is superior, as by pretending to be of a higher class or having greater authority than is the case.

To leave an elevated position to a lower position by one jump.

(idiomatic) To make conclusions before being presented with all the evidence.

A page of a newspaper on which an article is continued, having been started on a more prominent page.

(informal) To start early, especially before something begins or before others begin; to get a head start.

(skateboarding) To perform this trick.

(skateboarding) A trick in which the rider jumps above the board, leaving it on the ground to pass under an object the rider is jumping over.

Alternative form of jumping jack

(uncountable) An athletics event where a competitor must jump over a bar placed gradually higher and higher.