My sons have a hamster that they named "Bombur". I tend to call it "Bomburcino".

My cat is called Wigglebutt Fuzzypants, cause it describes her well. She has more hair than she can manage.

Good Elon, my dog. Because I know there's a bad one

Super rocket baby bok choy. His name is Ryu. I forgot what prompted that nickname 10+ years ago. But it stuck.

Schnutzeplotzepfnitzekatz!

Guess the language...

Silvery Boy

Silver Bro

Naughty Boy

Antigold

Lugia (a reference to Pokémon Silver)

His real name is "Silver", and he's a bitey snowshoe cat that has psychopathy.

One of our cats we nicknamed Dyson because he vacuums up all the food.

I named my cat Luphina. I thought it was so pretty. The name that stuck was Luphy. My husband calls her Monkey D Luffy.

We call her Luphy Loaf too.

Bubbus McPuppador?

Honestly, I have a shitload of dumb nicknames.

Mutiny.

Short for Sra. Sable Prettyeye the Tiny Enigma Mutant.

Stinkface. You can probably guess why.

My cat is named Princess Vivienne von kitty pants.

Princess consuella floofy pants

My grandmother had a cat we never got around to naming, and as a result what stuck for referring to her was just "pspspspsps". So we'd ask something like "Did pspspsps eat?". Amount of ps not standardised.

My little sister then decided that her name should be "little strawberry", in our language of course. She was not a ginger but a black and white cat. One day she disappeared, and about a year later when I moved to an apartment nearby I saw her getting fed by one of my (and my grandmothers) neighbor.

When I was 12ish, my mom got a pomeranian she named Lexie. I don't remember how it started exactly, but my friends and I all started calling her Spike, and we'd be so excited and pay so much attention to the dog while calling her Spike that she stopped answering to Lexie. So my 5 ft 4 mom was walking around with a 5 lb ball of fluff that only answeres to Spike.

We literally call our dog "Stupid". TBF she is pretty stupid.

Kitty Cat-o-matic With The Four On The Floor

Rinner Rinner Chicken Dinner; She with The Fluffiest Of Pants

Puddybuttajellywidda Baseball Bat

Growing up, we had a cat that ended up being called spud. I have no recollection why, but it was apparently funny.

I call my dog, Mila (pronounced Myla, I just was dumb when I tried to spell it when we adopted her), Mylar Balloon.

I have a toy Yorkie named Jazzy, and I call her either Jabu or Sweet-Pickle

I used to work at an animal shelter, and my go-to nickname for the dogs was just the first syllable of their name twice. Joy becomes Jojo, Daisy becomes Dede, Torrey becomes Toto, Peter becomes Pepe... It took me about a minute to figure out that I needed to call him Petey instead

As another cat owner here is the list of names that are not his name;

Him (as in, "Is Him a good?"), Tubs, Tubsalubs, Stink-O Man (I will sing, "Show me! Show you! Stink-O Man! Stink-O Man!"), Kneady/Needy/Needful/Kneadums, Hanger the Danger Kitty, All The Speed, and Whosa Baby (which involves picking him up and snuggling him thoroughly while he pretends to hate it, but the minute I open my arms to try to let him go he gives me a pathetic look until I snuggle him some more, a game which has gone on for tens of minutes before)

His real name is Louie

He goes by Louie, Lewis, Lewis Hamilton, Douglas Luiz, Dougie, Doogie, Dougie Howzer MD, King Louis XIV of France, Doug Larse,.

I’ve got two dogs and I sort of aspire to the most ridiculous nicknames for them.

Maggie > Maggie Moo
Moodaloo, Mooster, Mooffaletta, Big Smooch

Banjo
BlibbertyJigibbet, BeanieJeanie, BibbityJibbity, Lil’ Stink

Not a current pet but I want to name my next cat Hattibagen McCat

Fuckercat

May he rest in peace

One is Miss Dog and the other one I call Pequenina. I'm Brazilian and pequenina is little one, but her name is Nina, so thats why pequeNINA

I have a little dog named Carlos. Always called him Turd. Also Turdlos, Turd-boy, Turdle, and Turdley Von Turdlington.