adj. Relating to a link that has been designed, often with misleading or sensational text, to entice a person to click.
2014
Gianotto's day job entails managing technology for a New York City based creative agency called Noise—and that requires her to spend a lot of time on Facebook. There, she said, the clickbaity headlines just came "one after another after another," to the point where borrowing common phrases from the viral content "became a running joke because it was so frequent."
2014
To the average online journalist, few words are as irksome as the clinical and ill-defined "content." Everything on the internet is content, which means a reblogged chart about millenials [sic] with a clickbaity title is lumped into the same category as a yearlong investigation into New York City homelessness.
2009 (earliest)
Reason magazine compiled the "The 10 most absurd Time magazine covers from the last 40 years" and the coverlines feel downright clickbait-y if you ask us.