1. Bric-a-brac which litters wealthy people's homes, but is not worth stealing, and is ignored by thieves.
2. Extras in cinematic production. Sometimes refers to actors if the producers are especially high on themselves.
1. Man, leave that styrofoam alone, we got to find the jewellery case.
2. You can leave if you're going to look at me like that, you know. I can find styrofoam to replace you anywhere in this shithole city. I'm Someone-Fucking-Somebody, not some podunk drama teacher.