slather

mättää, panna paksulti puhekieltä A thick sauce or spread that is to be slathered (spread thickly) onto food.
drool Drool (qualifier).
1983, Edda: A Collection of Essays (Robert James Glendinning), page 177:

The river Ván in SnE I 21 is mentioned as coming from the slather of the bound Fenris Wolf.

In her eyes the manse people were quite fabulously rich, and no doubt those girls had slathers of shoes and stockings.

I slathered jam on my toast.

I slathered my toast with jam.