The meaning of SUCKER is one that sucks especially a breast or udder : suckling. How to use sucker in a sentence.

SUCKER definition: a person or thing that sucks. See examples of sucker used in a sentence.

1. To strip suckers or shoots from (plants). 2. Informal To trick; dupe: sucker a tourist into a confidence game.

be a sucker for something informal to like something so much that you cannot refuse it or judge its real value:

If you sucker a person into doing something, you deceive them, usually so that they do something that is against their own interests.

Mar 13, 2026 · (informal) A person irresistibly attracted by something specified. I'm a sucker for ghost stories. He must be a sucker for punishment to try to climb that mountain barefoot.

Definition of sucker noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.