Top Definition
When for some reason (weather, virus, fungus, shortage of partners)a plant or animal changes its sex. eg: Corn (it is suspected this is how modern corn came to be), frogs
Hey julie, guess what, you know our tank of all female frogs? well one of the girl frogs became a boy frog!

wow sandra, thats an example of catastrophic sexual transmutation!!
by heroditus August 24, 2006

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