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
