Pope Francis is urging Catholics on Ash Wednesday to give up something for Lent that they may have a very hard time doing without: being a jerk on the internet.

Insulting each other on the internet has become the great American pastime, especially in a bitterly contentious and highly polarizing presidential election year. The sharp rise in inflammatory and antagonizing online jabs has poisoned political discourse on social media, dividing friends and family members.

"We live in an atmosphere polluted by too much verbal violence, too many offensive and harmful words," Francis said while speaking to tens of thousands in St. Peter's Square, according to Reuters. "Today, people insult each other as if they were saying 'good day.'"

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Francis himself has not been immune from trolls. On Twitter, fights rage between his supporters and critics.

Ash Wednesday kicks off the start the 40-day period of abstinence and deprivation for Christians before Holy Week and Easter. Catholics often sacrifice something they crave, such as sweets.

Quipped American conservative political commentator Jesse Lee Peterson: "What am I supposed to do, stay offline until Easter?"

Last year, Francis urged followers to give up gossip. The year before, he called on them to slow down in a fast-paced world.