I'm flat broke.

我彻底破产，身无分文了。

youdao

The worst times were when he was flat broke and had no money at all.

最坏的时候是当他一名不文和根本没有钱的时候。

youdao

He spent the early 80s living in south London bedsits, flat broke and lonely, working on his craft as a comedian.

他在上世纪80年代早期都住在南伦敦的一室卧房中，身无分文而孤独地研究作为一个喜剧演员的技巧。

youdao

The worst times were when he was flat broke and had no money at all.

VOA: special.2009.10.04

With three days left to go in my trip, I was walking around Havana flat broke.

WSJ: Julia Stiles on Being Broke and Stranded in Havana | Traveler's Tale

And flat broke from the cost of an over-priced full English, one supposes.

BBC: View of M1 from Newport Pagnall service station

Having engineered my own exodus out of Florida, I was newly arrived in New York, living on the Lower East Side, flat broke.

WSJ: Matzo Brei Recipes for Passover: Easy as Brei