(Canada, US, informal) In a hurry.
(Canada, US, informal, dated) Very busy; fully engaged in energetic activity; on the go.
Source: en.wiktionary.orgAll the modelling we do shows that the climate is poised on the jump up to a new hot state. It is accelerating so fast that you could say that we are already in it. James Lovelock
He had an average day on the jump — finishing 39th with a time deficit of 3:37, which is typically not insurmountable for the strong skier. Source: Internet
Oil marketing companies hiked fuel prices for seven consecutive days till yesterday to record high, primarily on the jump in global crude prices. Source: Internet