slather /ˈslæðə(ɹ)/verb 4noun 3forms 3 verb4 •To spread something thickly on something else; to coat well.I slathered jam on my toast. •To apply generously upon.I slathered my toast with jam. •To rain.... rain had fallen all night and it was slathering down in sheets now. That didn't add to my good humor none. — 1918 •To squander. noun3 •A thick sauce or spread that is to be slathered (spread thickly) onto food. •[usually plural] A generous or abundant quantity.In her eyes the manse people were quite fabulously rich, and no doubt those girls had slathers of shoes and stockings. — 1919 •Drool (especially if abundant).[The river] Ván in SnE I 21 is mentioned as coming from the slather of the bound Fenris Wolf. — 1983 formsslathered · slathering · slathers