"Slap-headed" is a slang term that is often used to describe a person who is bald. However, this term could be considered offensive to some individuals, so it is important to know some synonyms to replace it. Some more respectful synonyms for "slap-headed" include hairless, bald, bald-headed, and follicularly challenged. Another synonym that can be used in a more humorous context is chrome dome. It is important to be mindful of the language we use and to choose words that do not offend or demean other individuals based on their physical appearance. It is always best to err on the side of respect and kindness.