Millie - who has been extremely vocal in her support for the LGBTQ+ community and stance against bullying - has chose to deactivate her social media after people made her to center of this inappropriate "trend".
The memes depicted Brown as a "violent homophobe" and earned thousands of likes and retweets.
Millie herself frequently posted on social media, updating on her whereabouts and posting sweet messages with boyfriend YouTuber Jacob Sartorius. She also still has her Instagram account, but has deactivated the comments section.
One queer Twitter users believe that they became popular because they allowed straight people to use the word "faggot" public.
"The joke here seems to be that it's so wildly out of character and unbelievable for Millie Bobby Brown to act violently or intolerantly, that presenting her as such makes people laugh", Vulture notes.
In 2017, Brown received an Emmy nomination for Outstanding Supporting Actress for her work as the telekinetic teenager on Stranger Things.