Your nuddy-pants are, well, your no-pants. When you are wearing your nuddy pants you are in the nude. The background of this word is from the Georgio Nicolsen series written by Louise Rennison.
When Cj forgot to wear pants to school, Cassie told me he was wearing his nuddy pants.
ayon kay sHiNtSuKi-PeNgUiN ika-13 ng Hunyo, 2004
Quite literally nude-colored pants, and you know what nide-colored pants are? They are no pants. So if you are in your nuddy-pants you are in your no paints, i.e., you are naked.
Dancing in my nuddy-pants means dancing naked.
ayon kay Georgia Nicolson ika-04 ng Agosto, 2005
when you are wearing pants that are, quite literally, skin colored-i.e. you are wearing no pants
Barbie: last night, i got like drunk i danced in my nuddy pants
ayon kay tayzor ika-27 ng Oktubre, 2003
Quite literally nude-colored pants, and you know what nude-colored pants are? They are no pants.
If you are in your nuddy-pants you are in your no pants, i.e., you are naked.
ayon kay jessickuhh ika-07 ng Setyembre, 2008