The students were going at it with the math problems late into the night.

We might as well suck it and see whether the new settings improve performance.

If you don't want your sandwich to go to waste, eat it before it spoils.

When he refused to apologize, she shouted, 'Eat it!'

After months of provocation, the two rivals decided to fight it out on the pitch this weekend to settle their rivalry once and for all.

When she thanked me for helping with her bags, I waved my hand and said, "it's nothing," in a casual tone.

After months of negotiations, the two rivals finally slugged it out on the debate stage.

The two boxers spent the entire match slugging it out, neither willing to give an inch.

When negotiations stall, the committee slugs it out in marathon sessions until they reach a compromise.

Don't worry, I'm on it.