"Mangirl Friday" is a term used to describe a female assistant or secretary who provides support to a male boss. However, the term is outdated and gender-biased. In modern times, it is important to use gender-neutral language in the workplace. Some synonyms for "Mangirl Friday" could include administrative assistant, executive assistant, office manager, or personal assistant. These terms do not reflect the gender of the individual providing support and are more appropriate for a diverse and inclusive workplace. It's essential to use vocabulary that doesn't discriminate or offend, ensuring that all employees can feel respected and valued.