1. One that sucks, especially an unweaned domestic animal. 2. One who is easily deceived; a dupe. 3. Jonathan Alter 4. Linda Ellerbee 5. He's a mean sucker. 6. A lollipop. 7. A piston or piston valve, as in a suction pump or syringe. 8. A tube or pipe, such as a siphon, through which something is sucked. 9. Any of numerous chiefly North American freshwater fishes of the family Catostomidae, having a toothless jaw and a thick-lipped mouth adapted for feeding by suction. 10. An organ or other structure adapted for sucking nourishment or for clinging to objects by suction. 11. A secondary shoot produced from the base or roots of a woody plant that gives rise to a new plant. 12. To strip suckers or shoots from (plants). 13. sucker a tourist into a confidence game. 14. To send out suckers or shoots.
