From Longman Dictionary of Contemporary Englishboggybog‧gy /ˈbɒɡi $ ˈbɑː-/ adjective LAND/GROUNDboggy ground is wet and muddy → bog a boggy patch at the edge of the field
Examples from the Corpus
boggy• The route turns away from the Ffos-y-Mynach at Waun Lodi where the path is boggy and dangerous.• Only exceptionally cloudy, boggy areas might survive the intense heat radiation from the reentering debris.• The plant medium container should be kept very moist to keep the boggy condition.• Once again he threw the cumbersome fish over his shoulder and began squelching his way across the boggy field.• The landing should have been straight forward but the aircraft ran into boggy ground, stopped suddenly and tipped over.• Go through gate at the bottom, cross the boggy ground to a stony lane.• The ground was boggy underfoot, though there was grass in abundance between the trees. 