The fragrant, crystalized substance found on the crotch area of a lady's panties. Panty sugar differs from panty soup in the contents of the dry residue. Panty sugar should contain little if any anal discharge, whereas panty soup can and often does contain a very skanky concoction of anal, vaginal, and menstral leakage.
Her panty sugar was so tantalizing and well crystalized that her panties stuck to it when she pulled the panties down.
Some bullshit excuse that the industry has come up with to disguise the product you know as "high fructose corn syrup", the same shit that caused and explosion of obesity and health problems in the last quater of the 20th century.
Commercial: "I only want the best for my children, so I feed them almost-but-not-really-at-all-natural corn sugar! The way nature* intended!"
Consumer: "Well I've never heard of corn sugar before, but if the souless actress says it's good for me than who am I to argue?"