have something under one's belt

I'm anxious to get the first game under my belt.

I suggest first getting another 4 years of life under your belt.

"The main thing is to get that first one under your belt," he said.

"What made the difference between this time and '97 was people have got more years under their belt," he said.

Learning languages was easy, he used to say, once you have got the first 10 under your belt.

For a kid who hasn't had any college experience, he's got some games to get under his belt.

I would like to get a solid round under my belt.

I don't care who you were playing against or where, it was good to get one under your belt.

I made up my mind that we had to get somebody with management under his belt.

Just wait when they get another year under their belt.