These are what Air Force members refer to chicks from Minot, North Dakota. Called this because in ND, behind every tree is a beautiful woman. Snow pig is the same as a tundra-wookie in Alaska.
You should have seen the Snow pig I took home from the bar last night... WOOO... she was a biggin.
similar to a bush pig except this unfortunate lass is also an albino
Abdul: Kevs new mrs is a right minger!
Maximillian: and pasty as fuck
Abdul: wot a snow pig