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2.
Someone who is retarded and agrees with insults towards onself.
An often at times insults oneself in front of large crowds of people.
Nick- "Quit doggin on Kobe"
Marco- "Im doggin on Kobe"

Juliana- "I hope your penis shrinks"
Marco- "If it gets any smaller it will disappear"
Juliana- "Dang foo you just contradicted yourself"
by Drum Master69 April 13, 2011
 
1.
Inconsistance, to oppose.
The two contradicted each other.
by Larstait November 14, 2003