Seriously messed up. The term "gumped up" was originally coined by a Captain McPherson of Maine. (Long before the film, "Forrest Gump.") The phrase became part of the regional dialect and continues today.
(With Maine accent) "Look at this fuckin' gumped up fuckin' piece of shit."
(Also with Maine accent) "Oh my friggin' word. This friggin' gumped up friggin' house! All the friggin' floors are saggin' an' the friggin' windows are are frigged up an' painted shut."