I have plenty of nicknames. You probably don't even realise it but Huffle Mawson is one of my nicknames. My real name is Stella.
Mum called me Hufflepuff after Harry Potter because I huff at things. A lot. Then she shortened it to Huffle and added Mawson after the antarctic explorer, because I like to explore things. I am never afraid to go and check out a new place (except the v-e-t, but only crazy cats like going there). Even Salvador (grumpy old man) doesn't like going to the v-e-t.
Other nicknames: Huffy, Huffley, Huffle Telly Show Cat, Psycho Huffle, Huffel Pawson, Huffle Gump, Huffypuff, Huffley Puffley, Little Black Cat, Little Girl, Huffle Dum Dum, Huffle Maniac and any combination of the above. You can see mum and dad are not very inventive.
I know my name is Huffle, and I come when mum calls me. I don't always come when dad calls me. I don't know about being called Stella, I ignore that one.