what you get when you get what you deserve for being stupid enough to wear a too tightthong underneath your too-tight, ill-fitting jeans so that everyone within 20 feet of your ass can see that you have once again failed to hide your nasty panty lines.
Someone should've told her that the point of the thong is to hide panty lines, not just displace them. Now she's got an itchy case of thong burn and can't go to the frat party with us.
Australian slang for an extremely unattractive person, thong's being rubber flip flops, and you can generally imagine what they would look like if burnt.