bust on

present singular third person busts on · participle present busting on · participle past busted on · past busted on

1. USidiomaticTo make a joke concerning; to ridicule or make fun of.

   Mr. Moffatt explained different signals that students use to express friendship, like "busting" on one another. To "bust on" someone is "to deflate their pretensions by means of aggressive verbal mockery." Mr. Moffatt explained that students only "bust on" their friends.

   1989 April 9, “Campus Life: Rutgers Anthropologist Examines Sex Life On the Raritan”, in New York Times, retrieved 16 Feb 2018

   3 more examples

   Three days after Nets Coach John Calipari called a reporter a "Mexican idiot," the team publicly apologized today. . . . "The way I understand it, what Cal was trying to do was bust on Garcia," Fenech said. "Once he saw Garcia's reaction, he realized he didn't think he was kidding."

   1997 March 24, Selena Roberts, “Ethnic Insult From Calipari Results in Apology by Nets”, in New York Times, retrieved 16 Feb 2018

   His wife bought him his first Utilikilt four years ago, but it took him six months to get up the courage to wear it outside. He finally decided to debut it at a local beer festival. "A lot of guys were busting on me," he recalled. But others wanted their picture taken with him, asking where they could get their own kilts.

   2007 August 19, Nick Miroff, “Kilt Shop Reveals A Loyal Clientele Itching to Be Free”, in Washington Post, retrieved 16 Feb 2018

   Diane Keaton, Candice Bergen, Jane Fonda and Mary Steenburgen took time out from shooting the 2018 movie Book Club on Monday to take in the eclipse, goofy glasses and all. While Bergen was rocking Instagram, however, Fonda actually posted less-than-perfect pics on Twitter that busted on the former "Murphy Brown" star. "Watching eclipse on set of BOOK CLUB," the Grace and Frankie star wrote. "Diane Keaton, Mary Steenburgen and I are rapt. Candice Bergen could care less#SolarEclipse2017."

   2017 August 22, Christie D'Zurilla, “Diane Keaton, Candice Bergen, Jane Fonda and Mary Steenburgen get shady during the eclipse”, in Los Angeles Times, retrieved 16 Feb 2018

2. USslangAfrican-American VernacularTo hit or attack (someone); to insult (someone); to snitch on (someone).