It looks like Cassidy wasn't joking when he said that "I was around when that clown couldn't even get his braids done." 

A Twitter user who goes by the name of @AYE_ish posted up a very old picture of Cassidy appearing to be rapping while standing next to Meek Mill, and Meek's hair is looking puffy and frizzy.  These two definitely have history together that the general public doesn't know about so the beef between them must be pretty personal.  Check out the throwback picture above.