When someone carves out a halloween pumpkin, and then takes a massive shit in the pumpkin. Mostly used for hurling at things
Man that was a good throw Timmy, you hit Nigel right in the face with that poopkin. Hes got shit all over him and he looks unconscious.
de Rick Simmons 17 Februarie 2005
1 more definition
A term of endearment used between gay men.
You look simply fabulous in that bomber jacket, poopkins!
de star 04 Februarie 2003