bitch about somebody

At least you got the shower you've been bitching about.

"I don't know what he's bitching about," Pucky says sullenly that night in the Pub.

I haven't had the flu since that one injection that I was bitching about.

"Then what the hell are you bitching about?"

That's exactly what I'm bitching about.

"Then what are you bitching about?"

Part of the money Regina was bitching about.

What was she bitching about?

I thought that was what you was bitching about.