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1.
Either a really unique or really idiotic way to cluster together a specific group of people or friends. Usually with the intent to sound cool but often does not work. Specifically used in age groups 10-16. Group names are aimed more towards a group of white girls; however, it depends on the people/group.
"Our group name is pretty girl rock."

or

"That group of girls calls themselves WGM."
by urbanguruchix January 07, 2012