Top Definition
The friend you bring along to parties, if you're not sure that people you know will be there. This offers you protection against standing alone on the side like a potted plant or being ranted at by drunken tax attorneys.
Steve: You going to Wendy's on saturday, i don't really know anyone else whoose going.
Freida: Yeah, me neither, i'm bringing Tom as isolation insulation.
by CaptainLemming July 26, 2010

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The Urban Dictionary Mug

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The Urban Dictionary Mug

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