An acronym meaning "3D
pig, disgusting," the last two words a reference to a video of a Korean ranting about how awful America and its people are.
It refers to
real-
life human women, for their tendency to have functioning bodies with un-oiled skin, small eyes, imperfect
fat distribution, skin that sags due to realistic amounts of collagen, 12 pairs of ribs, and small breasts, as opposed to
2D drawings in Manga, Anime, and Western cartoons, which emphasize expressive eyes and ideal bodies.
It's usually used in the subject of porn, mostly in sarcasm.
Pornhub is so fucking annoying. Every page I search will
always have this "featured" 3DPD shit video at the bottom in my
face if I'm desperate enough to
click on the 2nd page.