noun, noun or participle which takes 'suru'
bragging about one's misfortune; misery poker
Refers to the act of boasting about one's own hardships or bad luck, often in a competitive or self-pitying manner. Can be used as a noun or with する to describe the action.
彼の不幸自慢にはうんざりだ。
I'm fed up with his bragging about his misfortunes.
飲み会で不幸自慢をする人は苦
I can't stand people who play misery poker at drinking parties.