I'm game - You're saying you're cool with it. You're not making a big d

You're saying you're cool with it. You're not making a big deal out of it. You're just going to go with it.

"I'm game," he said, even though he was already in pajamas.

"I'm game," she said, even though she was on a date.

"I'm game," he said, even though he was already hungover.