The phrase "most boss-eyed" is a colloquialism used to describe someone who has crossed eyes or strabismus. However, it is not considered a polite or respectful term. There are many synonyms for this phrase that are more appropriate and sensitive to use, such as crossed-eyed, wall-eyed, or squinting. It is important to remember to use considerate language when discussing physical disabilities or differences, and to never use language that may be hurtful or offensive to others. By using more positive and respectful language, we can create a more inclusive and understanding community for everyone.