The Chalkening is a campaign launched by Donald Trump supporters on college campuses that involves writing pro-Trump messages in chalk on campus facilities (a common way to spread messages and announcements at many colleges). The term is a play on The Awakening, a popular horror movie.
The campaign began after students at Emory University complained about chalk writings on campus that promoted Donald Trump, including such innocuous slogans as "Trump 2016," and "Make America Great," and the somewhat controversial "Build The Wall," a reference to Trump's campaign promise to build a wall along the Mexican border and force Mexico to pay for it. Students who opposed Trump and his campaign claimed to Emory's dean that the messages "frightened" them; after the story went viral, campus activists campuses across the country began to express their support for Trump in chalk.
DePaul University has banned chalk messages on campus due to "offensive, hurtful, and divisive" pro-Trump messages. A protest march was held on the University of California, Santa Barbara, against pro-Trump chalk messages, “intolerance contained in the chalkings were “inconsistent with [the university’s] core values."