It's hard not to laugh up one's sleeve when a rival's plan spectacularly backfires.

Despite the scandal, the CEO was laughing all the way to the bank as the company's profits surged.

After exposing her rival's lies, one could have the laugh on one's side.

At the ridiculous play, one laughed one's head off until tears streamed down.

One laughs one's head off when the comedian hits the punchline.

One was laughing one's head off at the comedian's jokes.

Even after being criticized for cutting corners, the CEO laughs all the way to the bank.

When their risky patent paid off, the inventors laughed all the way to the bank.

The idea of wearing a tuxedo to mow the lawn was enough to make a cat laugh.

He bragged he'd never lose, but when the contest backfired he laughed on the other side of one's face.