I’d never heard the term wedgie until I was about 14. We always called them snuggies, and every time I see a Snuggie display at the local Kroeger, I giggle.
Snuggy? That’s just silly. We called it by its proper name: Melvin.
No, never.
I hadn’t ever heard of wedgies until I was 25, under any name; it took moving to the US. The idea itself makes my head hurt; God knows the boys I used to take care of weren’t the sweetest pies in the shop but they would never have attacked each other like that, it would have been socially unacceptable even for the worst bullies.
Nope, never.
Never knew of a snuggie as anything but a brand of diapers.
Nope…when we were kids, in Green Bay, what is now called a “wedgie” was called a “grundy”. Unless you pulled the front of the guy’s underwear up, at which point, it was called an “ooshma”. Seriously. 
‘Snuggy’ is much too cute a moniker for such an unpleasant sensation. It’s been ‘wedgie’ since grade school for me.
Wedgie and atomic wedgie are the terms I know.
Waaay back in early grade school I believe we called them hinder-binders.
Now that you mention it, I do seem to recall references to “grundie undies.” (Milwaukee, here.)
Milhouse on The Simpsons once referred to a certain type of wedgie as a ‘rear admiral’. I don’t know if the writers made it up but if it ain’t true it should be!
To me it sounds like you’d you WEDGIE to describe a hostile act and SNUGGIE if it just happened with no malicious intent
I do recall the term snuggie as well, although wedgie was far and away more popular.
I think the irony of the name was part of the charm.
The other night, I stumbled across something that noted that Jim Carrey and Jenny McCarthy are dating. That got me thinking about an ex- of his, Lauren Holly. imdb.com says she played Betty on a TV version of Archie (as in, the comic books). I was bouncing around the various characters (Reggie, Jughead, etc.) when I got to “Miss Grundy.”
In our lexicon, a “grundy” was a wedgie from the side. A “binder” was a wedgie from the front. We never called it a “snuggy” or a “melvin.” So I looked up “grundy” on Wikipedia. Nada. Here’s wedgie:
*As a prank or form of bullying, there are a number of variants to the normal wedgie. It is wholly impractical to list every variant, as the names and processes are entirely subjective; however, there are a few better-known variants.
The Melvin is a variant where the victim’s underwear is pulled up from the front, to cause injury to the victim’s genitals.[3]
The atomic wedgie entails hoisting the waistband of the receiver’s underwear up and over their head.[3][4]
The hanging wedgie is a variant in which the victim is hung from his or her underwear, elevated above the ground.[5]*
Also some interesting reading here:
http://en.wikipedia.org/wiki/List_of_school_pranks
Kancho is a prank often played out in Japan;[2] it is performed by clasping the hands together so the index fingers are pointing out and attempting to insert them sharply into someone’s anal region when the victim is not looking.[3] It is similar to the wedgie or a goosing, although the latter acts do not involve direct intimate physical contact. A Kancho is often executed simultaneously as the offending party expresses loudly “Kan-CHO!”
Oh, I had to click on that link!
I grew up in Green Bay, too… we used wedgie and grundy interchangeably. The only difference, perhaps, was that “Grundy” was a tad more vulgar. I guess “wedgie” was the polite term… if there is such a thing. Can’t say I’ve heard of “ooshma,” though. Male frontal wedgies were “melvins” in our household.
No
When I was in grade school ('70s) we called them “brownies”. In fact, I never even heard the term “wedgie” until I was a teenager (early '80s) and had moved to a different town. Similarly, where I grew up we never “gave him a swirly”; we just “flushed his head”.
ETA: And I’m speaking the rhetorical sense here; I was far more likely to be the recipient of the aforementioned acts than the instigator.