k.f is incorrectly written, and should be written as "k.f" being its meaning:k.f = Cinofilocinofilo: is dog lover. What happens is that I know this word from the Italian. In Spanish there is no official source anywhere, although looking with google, yes there is texts where it is used in the sense of a dog lover.
* Only one "like" per meaning and day, the more "likes" the meaning will appear higher in the list
