What is the meaning of "Jump for it"? [closed]

The “for it” is an phrase that is relatively common when preceded by a verb of action in the imperative:

“The police are coming! Run for it!”

“Don’t be hesitant – go for it!”

“There’s a shark! Swim for it!”

The it is rather vague and depends upon the context, but it usually has the meaning of “the [only] thing that will get you out of your troubles or difficulties”

This understanding creates the meaning of "for" as, approximately, "because" (i.e. a subordinating conjunction of purpose.)

Thus

“Jump for it” -> “Jump because that is the thing that will get you out of your troubles or difficulties”.

And therefore "Jump for it" tells you that you must jump and gives the reason for jumping.

However, in another context the phrase may have its literal meaning:

A: How can I escape?

B: Use the rope!

A: I can't reach it!

B: "Jump for it! = "Jump in order to reach the rope." or "Jump in the direction of the rope."