The word “humblebrag” has been around long enough that even I have heard of it. (Is that a humblebrag?) A collection of examples has been collected in a book that I have not yet read, entitled, “Humblebrag.” The word is common enough that it is even in the Oxford Dictionary, at least in the online edition.
For some reason, I only recently learned the term and, egomaniac that I am, I thought that I had come up with the concept years ago. I certainly had not.