Slump

slump, v.i. to fall or sink suddenly into water or mud: to fail or fall through helple ly.— n. a boggy place: the act of sinking into slush, ., also the sound so made: a sudden fall or failure.— adj. Slump′y , marshy. [Cf. Dan. slumpe , to stumble upon by chance; Ger. schlumpen , to trail.]