Light into

[H]e lit into that horse with his whip.

[S]he lit into everybody else in the church and gave them a fearful raking down, calling them right out by name and telling them how they all had behaved, and casting up all the quarrels and scandals of the past ten years.

"Father grabbed the two guns and told me to light into the other man. I jumped on him and started choking him."

He speaks with more passion than ever, lighting into George W. Bush for fumbling the economy.