The spelling of the word "tiggers" is incorrect. The correct spelling is "tigers" /ˈtaɪɡərz/. The mistake likely comes from the pronunciation of the word with a voiced "g" sound, which can make it sound like a "gg" or "ggj" sound. However, in English, the letter "g" is typically pronounced as a hard "g" sound /ɡ/ when it comes before the letters "a", "o", or "u", as in "goat", "goal", and "gun". Therefore, the proper spelling of the word is "tigers."
The word "tiggers" is a colloquial term derived from the character "Tigger" in the stories of Winnie-the-Pooh, written by A.A. Milne. Tigger is a bouncy, energetic tiger character introduced in the book "The House at Pooh Corner" in 1928. Over time, people began referring to tigers as "tiggers" as a playful homage to the character.