|Alt. spellings and titles||fat tub of lard, fat cow, ketchup free fatass (Chapter 17)|
|Relatives||Ronald McDonald (older brother), unnamed family members|
|First appearance||Chapter 17, Page 13|
|Last appearance||Chapter 17, Page 13|
|In real life|
|Actual name||Rosie ODonald|
|First appearance||Tails Gets Trolled Chapter 17, Page1 13 (2013)|
|“||Ahhherrrr Whyyyy?! Nom Nom Nom Nom Nom Nomnomnommmm....||”|
|Rosie, Chapter 17, Page 13|
Rosie is shown as a morbidly obese woman, with black messy hair and a large purple shirt. Rosie has multiple layers of fat on her body particularly around her neck and face. Notably, Kermit mistakes her for Miss Piggy when seeing her during the Intellect Bond.
In the past, Rosie was a popular target for trolling due to her grotesque appearance. One particular moment from Ronald's childhood is shown, where a pair of trolls confront her with a five dollar foot long from Subway. The trolls throw the sandwich at her, causing her to devour it in seconds. She then begins to cry and beg for more food, but is ignored by the trolls.
The trolling would only continue to get worse (drawing in attention from even "none trolls", as Ronald puts it), eventually drawing in her other family members such as Ronald and the other McDonalds. Rosie's family would then take action and attempt to sue all the trolls for their harsh words. This would end up doing nothing, as the land's freedom of speech made the trolls impossible to be sued. After the death of the family's hitman via rape from Troll Face, the trolls eventually force Rosie to watch the movie Twilight several times. The movie would slowly cause her few braincells to rot after crying over and over again. They would also record a video of Rosie dying to Twilight and send it to the McDonald family to troll them. Eventually, Rosie dies from having her brain completely deteriorated by the movie.
Much of what Rosie is like is described by Ronald. He mentions that Rosie has a liking for Justen Beaver, which made her a target for trolling.
Rosie is also described by Ronald to be dangerously retarded. He states that she does not have many brain cells which allowed her to be killed by watching Twilight.
Rosie is not shown to be capable of any special powers. The trolls during the flashback in Chapter 17: Psychological Assessment insinuate that she leaks bacon grease whenever she moves and note that she is capable of eating a five dollar foot long in a mere five seconds, however.
- Despite being Ronald McDonald's sister, the two have slightly different last names. Whether or not this is an error is unknown.
- Her name is based on real life actress Rosie O'Donnell.