I'm sure we all have a Call of Shootbang of Dingle Rinkus in our lives; a game series we simply can't bring to call by the proper name, perhaps due to an injoke or deep seated dislike of said series.

What are some of yours?

Well, I like to call COD, Clod of Doody

The japanese abbreviate Puzzles and Dragons as PazuDora, and I was there when I got to know the series so I called it that ever since.

Ah, a positive name, or at least neutral. That's nice.

It was between Charu or Chupa, both respectively are names for my late cat and chicken pets.

For while that is interesting to note, and may your cat rest well, this is about giving nicknames to video games.

Haha I misread the OP. Sorry.

Me and my friends called AoE -> ngeges, acronym for playing aGES

Vicky 2 is a pretty common one for Victoria 2 players.