Simple Definition of slather

from our Learner's Dictionary

slather

verb

slathers; slathered; slathering
: to cover (something) with a thick layer of a liquid, cream, etc.
We ate lobster slathered with/in butter.
She slathered her skin with sunscreen. = She slathered sunscreen on her skin.

Cite this Entry

“Slather.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/slather. Accessed 22 Jun. 2026.

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