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1.
possibly the most misunderstood person around
short for Odd C*@!, used when you around persons with a sensitive ear
Odders! you're a top bloke
by The OddOne January 06, 2005
 
2.
According to the Church of Evenism, an Odder is someone born in an odd year.
Barry was born in 1981, thereby making him an Odder.
by St Stephenus Evenus January 12, 2012