something you say which appears as if you are complaining or embarrassed, but is really a way of telling people about something that you are very proud of

She posted a classic humblebrag about spending $2,000 on a handbag "because I'm so terrible with money". 她发了一篇故作谦虚的炫耀性博文，非常典型，说自己花2000美元买了一个手提包，"因为我对钱太没有概念了"。

to let people know about something you are very proud of in a way that makes it appear as if you are complaining or embarrassed

"I don't know why anybody would want my autograph!" he humblebragged. "我不知道为什么会有人要我的签名！"他故作谦虚地说。