sucker

1. A person or animal that sucks, especially a breast or udder; especially a suckling animal, young mammal before it is weaned.
2. An undesired stem growing out of the roots or lower trunk of a shrub or tree, especially from the rootstock of a grafted plant or tree.
3. A parasite; a sponger.
4. An organ or body part that does the sucking; especially a round structure on the bodies of some insects, frogs, and octopuses that allows them to stick to surfaces.
5. A thing that works by sucking something.
6. The embolus, or bucket, of a pump; also, the valve of a pump basket.
7. A pipe through which anything is drawn.
8. A small piece of leather, usually round, having a string attached to the center, which, when saturated with water and pressed upon a stone or other body having a smooth surface, adheres, by reason of the atmospheric pressure, with such force as to enable a considerable weight to be thus lifted by the string; formerly used by children as a plaything.

Plural suckers