Cool Beans

It's just kind of a funny way to say "cool" or "awesome" or "sweet" or "dope" or "lit" or whatever kids are saying these days.

Like...Ted down in sales might run up to your cubicle and say, fist held out for a celebratory bump, head bobbing to a funky soundtrack only he can hear, "just landed the Switzberg account..." The proper reply would be to bump his fist, flash a smile and say "cool beans." Even if you don't know what the Switzberg account is.