A beige flag is a term that originated on TikTok to describe quirky habits or behaviors of a romantic partner that are not necessarily deal breakers, but not exactly desirable either. These behaviors are seen as benign but baffling, and may cause a potential partner or a partner to pause and say "Huh?" for a few seconds before carrying on with the relationship. Examples of beige flags include dunking Oreos in water instead of milk, turning on caps lock to type the first letter of every sentence, maintaining a Lego obsession into adulthood, being afraid of astronauts, reciting the etymology of someones name every time they meet a new person, knowing all the lyrics to every Jack Harlow song and singing them nonstop, and throwing theme parties for no reason. The exact definition of a beige flag is subjective and varies from person to person.