Bolos refers to a type of necktie commonly known as "bolo ties." Bolo ties are characterized by their thin and braided cords, often worn as a fashion accessory around the neck. They typically feature decorative metal or stone ornaments (bolo slides) attached to the cords.
Note: The provided meaning of the answer is for the latest New York Times crossword puzzle clue: Super-skinny ties. Explanations are generated by AI and may be inaccurate.