"I have mad brims"

This quote by Mos Def is a reference to the popular style trend of using hats with broad brims. The phrase "mad brims" is a slang term utilized to describe hats with wide brims, and it is frequently used to express admiration for the style. By stating "I have mad brims," Mos Def is revealing his gratitude for the style pattern and his own individual style. He is also likely recommending that he has a collection of hats with large brims, which is a sign of his commitment to the trend. The phrase "mad brims" is frequently used to explain hats with broad brims that are especially trendy or special, so Mos Def is most likely suggesting that his hats are stylish and stand out from the crowd.