Lièvre : noun Le Hare is a rodent mammal close to the rabbit, very quick to run thanks to its hind legs that are longer than its front legs.
Hare brain: person who has a bad memory or who does not.
Raise the / a hare: flush out a case, a blow (see below).
Running two hares at the same time: pursuing two objectives at the same time at the risk of not reaching them (see below).
Lifting a hare: unexpectedly raising a question that is embarrassing or compromising to others.
This is where the hare lies: there is the crux of the matter (This is the catch).
Take the hare to the lodge: catch someone.
Running after the same hare: after the same thing.
Do the hare on the first round: make the target to hit.
Disguise yourself as a hare: flee.
Quick as a hare: quick, quick.
Run / spin like a hare: Run (and be healthy); leave quickly.
Hunt hares and birds together: pursue two different goals.
Wanting to catch the hares to the sound of the drum: Use a method contrary to the goal you want to achieve.
In police jargon, the hare is traditionally the bearer of the ransom in a kidnapping case.
As for the use of the verb get up, you just have to know that, from the XNUMXth century, it had the meaning of "to bring out of its lodging, to make leave (a saved animal)".
The expression "Running several hares at the same time": Carrying out several businesses at the same time, at the risk of doing everything imperfectly.
A not too stupid hunter knows that wanting to aim at the same time two hares raised at the same time, he has a very good chance of killing neither, especially if they flee in opposite directions.
In such a case, it is better for him to focus on just one if he wants to have a chance of enjoying a good stew later.
This is why this expression, which actually came from the hunting world at the end of the XNUMXth century, and generalized to all fields, is often used in a context of criticism of those who wanted to do too much by doing too much. tackling several things simultaneously.