Sucker

A person or animal that sucks, especially a breast or udder; especially a suckling animal, young mammal before it is weaned.

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.

(by extension) A parasite; a sponger.

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.

To strip the suckers or shoots from; to deprive of suckers.

"to sucker maize"

To produce suckers, to throw up additional stems or shoots.

To move or attach itself by means of suckers.

To fool someone; to take advantage of someone.

"The salesman suckered him into signing an expensive maintenance contract."