Muhammed Ali thought so.
In the leadup to his fight with George Foreman, Muhammad Ali famously told reporters, “I’ve wrestled with alligators, I’ve tussled with a whale. I done handcuffed lightning and throw thunder in jail. You know I’m bad, just last week I murdered a rock, injured a stone, hospitalized a brick. I’m so mean, I make medicine sick.”
"It's gonna be a chilla, and a killa, and a thrilla, when I fight the Gorilla in Manila."
Ali played up Liston's scary image and cast himself in the role of hero readying to slay a dragon. "He's too ugly to be world champion," Ali crowed. "The world champ should be pretty like me!"
'I'll Beat Him so Bad He'll Need a Shoehorn to Put His Hat On!'
Ali got another great line off on one of my pals, asking him if he boxed. "I've boxed a little bit," my friend said." "What'd you box, apples or oranges?" Ali shot back.
'You're That Ugly Fella' to Trevor Burbick
https://bleacherreport.com/articles/2645884-ranking-muhammad-alis-10-greatest-lines-of-trash-talk