noun \ˈsə-kər\

: a person who is easily tricked or deceived

: a person who is very strongly attracted to a particular type of thing or person

: an annoying person or thing

Full Definition of SUCKER

a :  one that sucks especially a breast or udder :  suckling
b :  a device for creating or regulating suction (as a piston or valve in a pump)
c :  a pipe or tube through which something is drawn by suction
d (1) :  an organ in various animals for adhering or holding
(2) :  a mouth (as of a leech) adapted for sucking or adhering
:  a shoot from the roots or lower part of the stem of a plant
:  any of numerous chiefly North American freshwater bony fishes (family Catostomidae) closely related to the carps but distinguished from them especially by the structure of the mouth which usually has thick soft lips — compare hog sucker, white sucker
:  lollipop 1
a :  a person easily cheated or deceived
b :  a person irresistibly attracted by something specified <a sucker for ghost stories>
c —used as a generalized term of reference <see if you can get that sucker working again>

Examples of SUCKER

  1. He's just a con artist looking for another sucker.
  2. That kid is a mean little sucker.

First Known Use of SUCKER

14th century


suck·eredsuck·er·ing \ˈsə-k(ə-)riŋ\

Definition of SUCKER

transitive verb
:  to remove suckers from <sucker tobacco>
:  hoodwink 3
intransitive verb
:  to send out suckers <corn suckers abundantly>

Examples of SUCKER

  1. <a notorious imposter who at one time suckered a lot of people into believing that she was the Grand Duchess Anastasia>
  2. <suckered millions of desperate dieters with their grossly inflated claims of successful weight loss>

First Known Use of SUCKER



noun \ˈsək-ər\   (Medical Dictionary)

Medical Definition of SUCKER

: an organ in various animals (as a trematode or tapeworm) used for adhering or holding
: a mouth (as of a leech) adapted for sucking or adhering

Illustration of SUCKER


noun    (Concise Encyclopedia)

Sucker (Catostomus)—Grant Heilman Photography

Any of 80–100 species (family Catostomidae) of freshwater food fishes found mostly in North America. Suckers can be distinguished from minnows by the sucking mouth, with protrusible lips, on the underside of the head. Generally sluggish, they suck up detritus, invertebrates, and plants from the bottom of lakes and slow streams. The species vary greatly in size. The lake chubsucker (Erimyzon sucetta) grows to 10 in. (25 cm) long; the bigmouth buffalo fish (Ictiobus cyprinellus) grows to 35 in. (90 cm) and over 70 lbs (32 kg).


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