(slang, transitive) To drip or slather; to apply a gooey substance to a surface.

What did Goober mean?

goober. noun (2) Definition of goober (Entry 2 of 2) slang. : a naive, ignorant, or foolish person.

Is Goober an offensive word?

Calling someone a goober can be an insult, but it's more likely to be used fondly and endearingly.