I still can't sit down

To relate displeasure to another at being ripped off by otherwise generally legal means, implying they feel the pain of having been figuratively anally raped against their will. Fucked up the ass, usually monetarily.

Bob - So how much was the mechanic bill?
Dave - Shit, $360 to fix a fucking door latch. I still can't sit down.

My ex racked up $40,000 grand in credit card debt behind my back and dropped it all on me after the divorce. I still can't sit down.