Expert as in bigmouth A person who talks excessively or boasts, often without much substance or value in what they say. Clear All
2 Example Sentences Showcasing the Meaning of 'Gasbag'
At the business meeting, John realized he was dealing with a gasbag who promised a lot but delivered very little.
The scientist's presentation was informative, avoiding the pitfalls of becoming a gasbag with unnecessary jargon.
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