Noun. A group of teenage mothers in a small town who walk up and down the main drag with their strollers late at night. Sometimes the babies in them are real, sometimes they are fake.
Damn, the Stroller Derby is taking up the whole sidewalk when I’m just trying to get to the froyo stand!
12 step recovery jargon referring to someone new who talks about how great life is, now that they'resober. Usually meaning that the person is out of touch with reality.
The new guy seems pretty happy for a dude who has no job, no money and no family. He must be on a pink cloud.