"I'll beat him so bad he'll need a shoehorn to put his hat on"

In this quote, Muhammad Ali is expressing his self-confidence and decision to beat his challenger in a boxing match. He utilizes a metaphor to explain the extent of his success, saying that he will beat his opponent so badly that he will require a shoehorn to put his hat on. This indicates that his opponent will be so physically and psychologically beaten that he will have a hard time to even perform basic jobs like putting on a hat. Ali's words convey his belief in his own abilities and his intention to dominate his challenger in the ring.