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A Pokemon that is full of poisonous gases and spews them out in battle.
Jessie; Go Ekans

James; Go Koffing
by Light Joker April 25, 2004
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The most unexpecting thing to yell out in a group conversation
guy1: so how you guys doing?
guy2: good, but anyways how about that Sally bitch eh?
guy3: shes a bitch, i totally wanna--
guy4: KOFFING!
by Galano March 24, 2005
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