get the jump on someone—(coll.) gain an advantage over a person:
- Each of these new developers hopes to get the jump on the other by adding more square footage to the units.
give someone a jump —(coll.)
1. (also: give someone the jumps) make smb. frightened:
- Someone had skinned a dead calf and left it on the track, and it gave me a jump.
2. (also: give someone a jump-start) help a person start his stalled car:
- My car wouldn’t start after work. The security guard gave me a jump.