adj. Literally full of shit.
Related words: freaksome, dollsome, fucksome, yucksome, cuddlesome, skanksome, icksome, squeesome.
Real citation: "6:45 p.m. A potentially poopsome pooch was warned off the Plaza."
(Kevin L. Hoover, "He needed somewhat more pants than that," The Arcata Eye, http://www.arcataeye.com/police/040809police.shtml)
Made-up citation: "When I get that painful poopsome feeling, I know it's time to lay an egg."