Top Definition
The term used for two people who decide to wear sweater-vests together.
Dude 1: "I hear sweatervests are coming back into style! We just go out and go get some!"

Dude 2: "As long as we don't get matching ones, we can be sweaterbesties!"

Dude 3: "I'm not joining this fad"
by sweatervests101 February 13, 2010

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