sucker (n.)
- babe
- barnacle
- beat
- bine
- bloodsucker
- boob
- bough
- branch
- butt
- chump
- cinch
- client
- cull
- customer
- deadwood
- diddle
- do
- dupe
- fish
- flagellum
- fool
- fork
- freeloader
- frond
- goat
- greenhorn
- gudgeon
- gull
- gyp
- hanger-on
- innocent
- leech
- limb
- mark
- monkey
- mug
- offshoot
- patron
- patsy
- pigeon
- plaything
- prospect
- pushover
- ramification
- regular
- runner
- sap
- saphead
- sapling
- schlemiel
- scion
- seedling
- set
- shoot
- slip
- spear
- spiv
- sponge
- sponger
- spray
- sprig
- sprit
- sprout
- stolon
- stooge
- switch
- take
- tendril
- thallus
- toy
- twig
- victim