nude panties

(Noun, plural.)
Skin-colored, beige or brown panties without visible panty lines, so that you can't see them through your clothes.

- "Sweetheart, you can't go out like that! I can see your undies right through your dress."
- "But mom ..."
- "We really have to get you a pair of nude panties, darling."
- "But mom, what if I *want* people to see my panty line?!"