a flat or concave organ enabling an animal to cling to a surface by suction.
the piston of a suction pump.
a pipe through which liquid is drawn by suction.
2 informal a gullible or easily deceived person.
(a sucker for) a person particularly susceptible to or fond of a specified thing:I always was a sucker for a good fairy tale
3North American informal a thing or person not specified by name:he’s one strong sucker
4 Botany a shoot springing from the base of a tree or other plant, especially one arising from the root below ground level at some distance from the main stem or trunk.
a side shoot from an axillary bud, as in tomato plants.
5a freshwater fish with thick lips that are used to suck up food from the bottom, native to North America and Asia.
Family Catostomidae: many genera and species
6North American informal a lollipop.
verb
1 [no object] Botany (of a plant) produce suckers:it spread rapidly after being left undisturbed to sucker
2 [with object]North American informal fool or trick (someone):they got suckered into accepting responsibility
