get the lead out

to hurry up; to work or move faster; (pronounced like lead pencil)
This expression can probably be loosely interpreted as removing dead weight from a vehicle so that it can travel faster.

Bart Simpson: Come on Homer, get the lead out!

49👍 12👎

get a lead on

It is typically used to mean that someone has obtained useful information that will help them to progress in a venture or task.

1."We finally got a lead on a girl"
2. "I've been looking for a job for weeks, but now I've got a lead from an old classmate on a potential opportunity."
3. "We will get a lead on this case soon"