slubber UK /ˈslʌbə/US /ˈslʌbɚ/verb 3noun 1forms 3 verb3 •To do (something) hastily, imperfectly, or sloppily.[H]e [Antonio] ansvvered, do not so, / Slubber not business for my sake, Bassanio, / But stay the very riping of the time — 1596 •To cover or daub (something) carelessly with a substance; to stain.[T]here is no art that hath bin more canker'd in her principles, more soyl'd, and slubber'd vvith aphorisming pedantry then the art of policie; […] — 1641 •To slobber.It grows colder, and grayer, and penguins cry in the night, and huge amphibians moan and slubber. — 1914 noun1 •A person who, or a machine which, slubs. formsslubbered · slubbering · slubbers