It's an old expression, been around the Ozarks(probably in other areas too)for a long time. It's a mildly derogatory description of something or someone that a person doesn't think too highly of, such as "I threw that suckerbill away," or "Tell that suckerbill to hit the road," or "That suckerbill doesn't know what he's talking about."
The disks on the arms of an octopus are called suckers. A breast feeding baby is a sucker A leach is a sucker. Someone drinking through a straw is a sucker A plastic cup used to stick something to a wall is a sucker.
sucker
A sucker sticks to a smooth surface by creating a vacuum seal between the sucker and the surface. When the sucker is pressed against the surface, the air inside the sucker is forced out, creating a vacuum that holds the sucker in place. This vacuum seal generates enough suction force to keep the sucker attached to the smooth surface.
a sucker a sucker
Hooks and sucker rings.
A "sucker" is a gullible person, as in "There's a sucker born every minute". "I'm a sucker for .." means one is vulnerable to or easily attracted to ...
A sucker sticks to the wall due to suction. When you press the sucker against a smooth surface and then pull on it, it creates a vacuum seal between the sucker and the wall, which results in a strong adhesive force that keeps the sucker attached.
Sucker barb was created in 1860.
Longnose Sucker was created in 1773.
June sucker was created in 1878.
Super Sucker was created in 2003.
White Sucker was created in 1803.