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to insult someone online without any consideration of social etiquette or people's feelings, and feeling no remorse. Can also be adapted for day to day use.
On someone's photo on Facebook: "Hey, you look really ugly in this photo."
Reply post: "Did you just Smegle me?"

Guy: "Hey man you stink!"
2nd Guy: "Fuck you Smegle!"
by FBAvenger May 18, 2012