RhymeZone: sucker definitions

Definitions of sucker:

noun: mostly North American freshwater fishes with a thick-lipped mouth for feeding by suction; related to carps
noun: an organ specialized for sucking nourishment or for adhering to objects by suction
noun: flesh of any of numerous North American food fishes with toothless jaws
noun: a drinker who sucks (as at a nipple or through a straw)
noun: a shoot arising from a plant's roots
noun: hard candy on a stick
noun: a person who is gullible and easy to take advantage of