An undercover cop
The only form of pig in a blanket I’m familiar with is a prune wrapped in bacon. Which is kind of a misnomer, because in that recipe the pig is the blanket.
We call it Gołąbki (pronounced GLOOMPkee). Pigs in the blanket to everyone but the old folks. We’re from Pittsburgh. It was made by both my grandmothers (Polish and Slovak). It’s cabbage leaves wrapped around ground beef or pork mixed with rice, cooked in the oven. There’s a red sauce made from the meat juice and a little tomato sauce. Always served with mashed potatoes (that you can pour the red sauce on).
This. NW Indiana of Lithuanian descent (on mom’s side. Dad’s english and refused to eat them.)
Is it the same thing as a sleeping policeman? 
I think of cocktail sausage or pieces of hot dogs wrapped in any sort of biscuit, crescent roll, or cheese scone dough. Whole hot dogs are too big to be pigs in a blanket.
Same place as the pod people, of course.
It’s a smokey link wrapped in a crescent roll
My parents are poms and that was what I knew as pigs in a blanket, sausages with pastry were toad in the hole. When I was young and worked as a laborer on a building site there were mainly Czechs, Croatians and other eastern Europeans working with me. They enjoyed giving the young Aussie food because I loved it and most of the older guys used to complain about the smells. One of the best things was Sarma which was the stuffed cabbage rolls they called pig in the blanket. Every guy who brought them had a different version of essentially the same dish and I gave them all my approval.
Halupki (aka cabbage roll) - which goes well with halushki and perohi to make a basic ethnic sampler.
Within American cuisine, I’m pretty sure I can date the slavic “pigs in the blanket” (Cabbage, beef, ground pork sausage, rice, and tomates) to before the seemingly most common standard of the flaky crescent or dough wrapped sausage ‘pig in the blanket’ … I think Pillsbury Plagiarized. I have however heard of the Pancake and sausage combo as pigs in the blanket, and I definitely believe that predates the Pillsbury recipe.
A hot dog . . . usually a small one, like a cocktail frank . . . wrapped in some kind of dough. I didn’t know it had any other meaning.
Hot dog wrapped in either a crescent roll if you’re fancy, or a piece of Wonder Bread if you’re not.
FTR, often I hear the stuffed cabbage rolls called “pigs-inna-blanket” and most frequently as just plain " pigs."
Sausage wrapped in a pancake but Fifille says it’s cocktail weenies wrapped in puff pastry. She’s wrong.
This.
And another vote for porcupine balls just being rice in meatballs.
Grew up outside Chicago in the 70’s.
A sausage wrapped in a rasher of bacon. Usually eaten at Christmas with the turkey.
Your options are close, but not quite right. Pigs in a blanket refers exclusively to a finger food: little cocktail sausages wrapped in dough from a can, whether crescent roll or biscuit. If the latter the biscuits are put on thinner and somehow not let rise as much, and come out white yet not doughy. There is a breakfast variety, but it definitely does not involve pancakes. You just use half a breakfast sausage and the canned dough. And it must be explicitly specified that these are “breakfast pigs in a blanket”. Otherwise it’s the cocktail weenies, even at breakfast. There’s also a “Chinese” variety that means bacon wrapped around pieces of hot dog. (Probably because we first saw them at a Chinese restaurant)
Finally, in the plural it can also refer to a bunch of toddlers or young kids wrapped in fairly large parkas to the point where you wouldn’t expect them to be able to move, but, somehow, they are still able to move around like “pigs in a blanket”.
I just heard the Chicago Bundys on Married with Children call the pig in a blanket (crescent roll/lil smokies) a “Weenie Tot”. I think it’s one of Al’s favorite dishes. That episode appeared to be from the early nineties.
I voted “sausage in a pancake,” completely confident that the other responses would have teeny tiny amounts of voters.
But then I saw the results. WOW. I have NEVER heard a pig-in-a-blanket to mean anything other than a sausage in a pancake. This is all new to me.
And apparently -I- am in the minority? Wow.