The term "Mouthy" is an adjective used to describe someone who talks a lot, often in a bold or opinionated manner. This person tends to speak their mind freely and may be seen as outspoken or assertive when expressing their thoughts or feelings. They are not afraid to voice their opinions, even if it means challenging authority or going against social norms. In essence, being "Mouthy" is characterized by having a strong, confident, and vocal personality.