RETIRED POLICE OFFICER

I’ve been working on a court order case for $50/mo that this debtor (who is a retired police office) has defaulted on. I called him at home and he said to call back in 20 m. I called back in 25 min and he said he told me to call back later. I told him to stop putting me off. He has a court order that he defaulted on.  He then told me that I am talking to a pretty tough guy and he’s going to flash me. I told him he’s on a recorded line again, and what he meant “flash me.” He said I knew what he meant and he’ll do it. I told him to go ahead and “flash away” and have a great day. I ended the call.

So if anyone can tell me what “flash me” means, other than the obvious, taking off of clothing, that would be helpful.