A man who tells everyone how rich and successful he is all the time is an example of a braggart.
An example of a braggart style is someone who has to boast to everyone, to the point of being offensive.
Origin of braggart
- French bragard from braguer to brag perhaps from Middle English braggen brag
From American Heritage Dictionary of the English Language, 5th Edition
- Old French bragard (“flaunting, vain, bragging”)