Flyting: A ritual exchange of insults. According to a Wikipedia entry:
The root is the Old English word flītan meaning quarrel (from Old Norse word flyta meaning provocation). Examples of flyting are found throughout Norse, Celtic, Anglo-Saxon and Medieval literature involving both historical and mythological figures. The exchanges would become extremely provocative, often involving accusations of cowardice or sexual perversion.
There was a flurry of flyting after the real-estate heir and presidential aspirant Donald J. Trump posted a blustery tweet on Friday, the morning after the UK’s historic (and potentially calamitous) vote to leave the European Union, aka “Brexit”:
Just arrived in Scotland. Place is going wild over the vote. They took their country back, just like we will take America back. No games!— Donald J. Trump (@realDonaldTrump) June 24, 2016
In point of fact, while UK voters overall chose the “Leave” option, a resounding majority of Scots voters – 62 percent – opted to “Remain.” And many UK residents, Scots and Brits alike, were quick to set the record straight, tweet-showering Trump with florid epithets.