to catch (game, fish, etc) illegally by trespassing on private property

to encroach on or usurp (another person's rights, duties, etc) or steal (an idea, employee, etc)

to take or play (shots that should belong to one's partner)

to break up (land) into wet muddy patches, as by riding over it, or (of land) to become broken up in this way

(of the feet, shoes, etc) to sink into heavy wet ground

to simmer (eggs, fish, etc) very gently in water, milk, stock, etc