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Being the latin name for the cat family, this insult is used to describe anyone who has an ugly or cattish appearance, they can also be particularly bitchy or someone who gets into many catfights.

It can also be used to describe an old single woman who lives in a house with only her cat as companion and thus dreams about young boys she can never have and is therefore a bitter and twisted individual.
"check out that old woman in that house, god shes such an ugly old felidae"
by Oinktastic December 14, 2004
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