(n.) Sand easily moved or readily yielding to pressure; especially, a deep mass of loose or moving sand mixed with water, sometimes found at the mouth of a river or along some coasts, and very dangerous, from the difficulty of extricating a person who begins sinking into it.

baygall bind bog bottom bottomland bottoms breakers ahead buffalo wallow cardhouse cause for alarm clutch complication coral heads crisis crunch danger dangerous ground embarrassing position embarrassment emergency endangerment everglade fen fenland fine how-do-you-do gaping chasm gathering clouds glade hazard hell to pay hobble hog wallow holm hot water house of cards how-do-you-do imbroglio imperilment ironbound coast jam jeopardy ledges lee shore marais marish marsh marshland meadow menace mere mess mire mix moor moorland morass moss mud mud flat parlous straits pass peat bog peril pickle pinch pitfall plight predicament pretty pass pretty pickle pretty predicament quagmire quicksands risk rockbound coast rocks rocks ahead salt marsh sandbank sandbar sands scrape shallows shoals slob land slough sough spot squeeze stew sticky wicket storm clouds strait straits sump swale swamp swampland taiga thin ice threat tight spot tight squeeze tightrope tricky spot undercurrent undertow unholy mess wallow wash