Sounds like standing barbell curls.
It is currently believed that abs should be worked like any other muscle. The thought use to be you could work them everyday if you wanted to. I'd at least get in a good ab work-out twice a week. And you can put them anywhere.....if you're not doing anything you need the gym for, you could do them at home. I'll post a link to a good exercise site tomorrow. I'm on the computer in my bedroom now and it's not on it. It shows how tons of weight training exercises are done. You could also get ideas for new things to try.