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1. Your wise-ass self. A combining of the name Sophia (meaning "the wise one," from the Greek root Sophos, 'wise') and the English word "self."

2. A glorified version of the word "self."
"You tagged the White House?! All by your selphia?"

"I'm on a diet of poong tang and herbal extracts, and my selphia neva bin helfia."
by Tristan Jackson February 12, 2007
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