When she's not busy being the author of the best-selling book series in history, the Harry Potter fantasy series, British novelist J.K. Rowling is "the undisputed queen of Twitter".

From giving her two cents on sexism and terrorism, to calling out controversial politicians, Rowling always crafts on-point replies ... all in 140 characters. 

In her latest Twitter showdown, she stood up for Muslims against this guy trying to incite Islamophobia

When Rutger Ulbrecht, who often shares his oh-so-insightful anti-Muslim views on Twitter, decided to incite more unnecessary hate against Muslims in the West, Rowling stopped him in his tracks. 

Ulbrecht posted a tweet that feeds into the stigma facing Muslims in Europe, and particularly in Britain, claiming, "In Britain, leaving a bacon sandwich outside a mosque gets you more jail time than raping an 11-year-old." 

Rowling was quick to point out his flat-out lie

In response, Rowling posted a tweet mocking his inaccurate claim, writing, "DID YOU KNOW: In Britain, we call things that are completely untrue 'bollocks'?"

Twitter just loved it!

Rowling's tweet went viral in no time, garnering over 16,000 retweets at the time of writing, with people pitching in with their own responses to Ulbrecht's tweet.

Newsflash: Muslims aren't really offended by bacon

"We will donate said sandwich to a hungry or needy person"

We totally DESPISE donuts, though

Go ahead and offend us with some Krispy Kreme glazed donuts ... we dare you!

And God forbid we see cash ... astaghfirullah!

Where is his evidence?

Social media users noted that Ulbrecht was most likely referring to two separate cases: In the first, a member of a racist gang, which put bacon on the handles and doorsteps of mosques and raised anti-Muslim banners, was reportedly handed a 12-month sentence. 

Meanwhile, in the second case, Qur'an teacher found guilty of molesting his 11-year-old student by rubbing her leg and reaching out to touch her chest was sentenced to 40 weeks in prison.

In the latter, the judge responsible for the case had found mitigating factors pertaining to the defendant's family status.

While it does seem like the second ruling undermined the serious implications of sexual abuse, Ulbrecht's tweet takes the two unrelated cases out of context. 

He disregards the distinct evidence factoring into the respective rulings, drawing a general conclusion that is not based on actual facts. 

"Unusual comparison"

Ulbrecht is known for spewing anti-Muslim hate and reinforcing stereotypes against Muslims

Not the first time Rowling tweets killer replies