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1.
To change identity rapidly; to use overabundant pseudonyms.
"I didn't know who he was. He must've been Syndogging."
by Glanzer September 10, 2003
 
2.
To choke under pressure or fail in an assigned task.
OMGWTFBBQ! Don't pull a Syndogg!
by Unicron September 08, 2003