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1.
A Sun Devil is the mascot of Arizona State University in Tempe, Arizona. The Sun Devil mascot goes by the name of "Sparky".
Fork em' Sun Devils
by Sparky the Sun Devil February 08, 2009
 
2.
Slang for a festering herpes sore.
I hate all these sun devils on my penis.
by AirbudpartII December 02, 2010