An article comprised mainly of a list of something annoying.
They are easy for content producers to create or plagiarize, and unlike news content, they remain "relevant" for years. Because they don't take long to read, visitors to the site are more likely to click on another listicle that interests them, generating more traffic. They are also bite-sized and frivolous enough to be shared on social media.
Listicles:
10 romcoms that were based on Greek tragedies
15 shocking things your cat doesn't tell you
The 7 things most commonly found in a celebrity's anus
Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.
A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.
I had a trucker's tan after driving for 10 straight hours on a sunny day.