1. people who talk too much, especially in a boring or boastful way
Usage: informal; derogatory
2. large bags or containers filled with gas, especially those used in balloons or airships
Usage: technical

Examples

• The meeting was dominated by a few gasbags who wouldn’t let anyone else speak.
• Those politicians are just gasbags making empty promises.
• The old airship’s gasbags were filled with helium for safety.
• Hot air balloon gasbags must be carefully inspected before each flight.
• I can’t stand listening to those gasbags at the coffee shop every morning.
• The dirigible’s gasbags were damaged in the storm.