gudgeon
/ˈɡʌdʒən/noun
Definitions
A small freshwater fish, Gobio gobio, that is native to Eurasia.
Synonyms:gobywapperAny of various similar small fish of the family Eleotridae, often used as bait.
Synonyms:sleeper gobyA person apt to take the bait; one easily cheated or duped; also, an idiot.
Something used to lure or tempt; bait, a lure.
verb
Definitions
To deprive (someone) fraudulently; to cheat, to dupe.
To take the bait; to be defrauded or duped.