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3.
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.
by Col. Dr. April 23, 2006
 
1.
Foam container used to hold a popular drink containing codine known as "syrup" "purple drink" "lean" etc. Originated in the south mainly in Texas.
I keep that styrofoam with me.
by Casanova10280 February 27, 2009
 
2.
An artifical, brittle white packing material used to protect large objects such as electronincs and furniture from breaking during shipping. It was first made using chloro-fluro-carbons (CFCs) but was later made using other materials due to the destruction of the Ozone layer caused by CFCs.
The box was packed with styrofoam.
by k00ld00d321 December 30, 2004
 
4.
A soft squishy material, it can be used for many things. One, is Styrofoam swords of wrath. yes yes. another, is to wrap around an egg and stick it in a box with bricks so it doesn't break when you drop it off a building.
FEAR ME! And my styrofoam sword of WRATH!
by Stykz December 24, 2004
 
5.
Filler used to complete sentences in written composition. This used to be called "stuffing sentences with straw," but since no one uses straw anymore, the term "styrofoam" is now employed. Anytime the writer cannot think of a specific word that would be appropriate in a sentence, he or she merely substitutes a "styrofoam" word in the construction, which hopefully he or she will later replace with an actual word that has a specific definition. Examples of famous styrofoam words are nouns such as "thing," "area," "aspect," "case," "factor," "fashion," "field," "kind," "lot," "manner," "nature," "process," "situation," "stuff," "type," and so on; adjectives such as "nice," "fantastic," "good," "great," "pretty," "super," "awesome," "terrific," "terrible," "horrible," "funny," and so on; and verbs such as "do," "give," "get," "have," "hold," "make," "put," "take," and so on. Most of these words are commonly used inappropriately, and are seldom used to convey an accurate sensory impression.
The teacher gave my essay an F because I was using too much styrofoam in my sentences.
by Eckhard Gerdes December 21, 2006