If you turned on the ol’ Twitter machine Tuesday, you may have noticed Muslims apologizing. Specifically, people tweeting the hashtag #MuslimApologies.

The hashtag sprung up on the same day that President Obama said before the United Nations General Assembly that "it is time for the world – especially Muslim communities – to explicitly, forcefully, and consistently reject the ideology of al Qaeda and ISIL."

Obama specifically mentioned the #NotInMyName campaign, launched by the London-based Active Change Foundation to condemn the Islamic State by saying their actions don't represent British Muslims. A number of Muslim leaders around the world have overtly condemned the Islamic State, too, from Sacramento to Germany.

#MuslimApologies represents another reaction: Frustration over the assumption of collective responsibility.

Many of the tweets express weariness about having to apologize for the actions of extremists who claim to represent Islam, a religion with an estimated 1.6 billion adherents worldwide.

Muslims in the United States, for instance, face problematic public perceptions of their religion: 50 percent of Americans believe that Islam, more than other religions, encourages violence among its believers, according to the Pew Research Center.

The tweets include quips about inventions birthed during the height of Islamic civilization, forgiveness over the mechanics of ablutions, and sorrow for general phenomena such as Vanilla Ice.

Here are a few: