The gasbag is in two parts—a tough shell and a gastight bladder, the latter being designed to be discarded if it leaks.
The collapse of gasbag can have surprised no careful reader of these columns.
First comes the typical Russian gasbag, who talks and then talks some more.
It was Maynard's fault; he was conceited, and a gasbag, and talked about the wrong things.
An energetic and persevering talker; windbag
To talk energetically and perseveringly: although we have of course plenty of gasbagging about morality (1888+)