The adjective 'gabby' is informal and best used in casual conversations or writing. My cousin is gabby during our family dinners.
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Potentially Negative
'Gabby' can imply someone talks excessively, often in a way that's annoying to others. Our gabby tour guide exhausted the group with endless stories.
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Social Context
Use 'gabby' to describe social interactions where someone dominates the conversation. During the meeting, the gabby participant barely let anyone else speak.