Booger is a common and sometimes gross term for the mucus that can accumulate in our nostrils. However, there are many less cringe-worthy synonyms that can be used instead. Some examples include snot, nasal mucus, nasal discharge, nasal secretion, or simply mucus. These terms are more accurate and professional, making them appropriate for medical settings or in polite company. Additionally, there are regional or colloquial terms that might be used as well, such as bogey, snivel, or goober. Regardless of the term used, it is important to remove excess mucus for proper respiratory function and hygiene.