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1.
This is cat that is a full grown cat but with a personality of a kitten.
T-bo:So,how is your new cat?
Bri-man:Dude,it's a catten!
by iamthedream September 17, 2006
 
2.
a creature which is not quite a cat but not quite a kitten anymore.
"your catten missed the litter box by a few feet."
by captain j July 15, 2006