I'm struggling with another of Mrs. Byrne's special words.

she gives flatulopetic as:
1) pertaining to gas production in the bowels
2) pretentious, pompous, inflated

I find this in none of the usual metasources, and it is found online almost exclusively at sites that have used Mrs. B (openly or not so) as a source.

I have no problem with flatu(s :) as a root, but whence/what of the the -(o)petic?

(I've emailed this query to uncle jheem as well; if he comes up with something I'll relay it here.)