Friendly in a false, calculating way; underhanded; two-faced; sneaky; slick; smarmy.
Of or pertaining to slime
resembling, of the nature of, covered or daubed with, or abounding in slime
A ponyfish.
Not noble; ignoble; base.
Of a metal, being at the lower end of the electrochemical series, i.e. oxidising readily.
To make (someone or something) no longer noble