go for it—make an all-out attempt to get or obtain smth.:
- Each dog selected his bird, and went for it steadily.
Note: The expression is not equivalent in meaning to the phrase go at it—act rapidly and vigorously:
- When you have found out what you want to do—then go at it like blazes.
run for it—(also: make a run for it) run in order to escape from a place or a dangerous situation:
- We made good progress but then encountered more head winds which increased to gale force, and once more we had to run for it.