Meanings
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1
noun
a gullible person who is easily deceived or exploited; informal and disapproving
The scammer assumed every newcomer was a sucker.
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2
noun
a person who is especially fond of or unable to resist something; informal, usually in 'a sucker for'
I am a sucker for old detective stories.
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3
noun
an organ or device that grips, feeds, or attaches by suction
Each tentacle ends in a sucker that can grip the rock.
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4
noun
a hard candy on a stick; chiefly North American
The child chose a cherry sucker from the jar.
Thesaurus
Etymology
From Middle English souker or sukkere, formed from suck + the agent suffix -er. The literal senses name a person, organ, or object that sucks; the gullible-person sense probably reflects the idea of someone drawn in or easily taken advantage of.