What does slather mean?
Slather means to spread or apply a substance thickly and without restraint. The expression is especially common in contexts involving sunscreen, butter, paint, makeup, or another material that can be smeared over a surface. It often suggests a generous or excessive amount: someone may slather sunscreen on before sun exposure, or a child may slather a table with paint. Slather can also function as a noun, as in “a slather of mud,” meaning a substantial and often messy quantity. The word is chiefly associated with American English but is readily understood elsewhere. Its vivid, physical character makes it especially effective for describing abundant application, informal exaggeration, and cheerful excess, though it can also carry a faintly critical or humorous tone when the quantity seems excessive.
To spread, smear, or apply a substance thickly and freely.
"Don't forget to slather on plenty of sunscreen."
Commonly used with sunscreen, paint, butter, makeup, and similar spreadable substances; it often implies generosity or excess.
A large or excessive amount of a substance, especially one smeared over a surface.
"There was a slather of mud on the back of her coat."
The phrase “a slather of” is especially characteristic of informal American English.
Used when referring to separate amounts or applications of a substance, though the noun is uncommon in formal writing.
"The artist prepared several thick slathers of red paint."
A slather is where restraint goes out the window and sunscreen arrives everywhere.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does slather come from?
The word is attested from the early 19th century, but its precise origin is uncertain. It developed in the sense now associated with spreading a substance freely and thickly; the later use for an abundant quantity followed naturally from that meaning. No certain cognate from another language can be identified, so any more specific derivation would be speculative.
How slather is actually used
The verb is informal and often implies that the substance is applied in a thick, generous, or excessive layer. The noun similarly conveys abundance and may be slightly disparaging when describing a messy or conspicuous quantity.
Easily confused with slather
Slather means to spread or apply something freely, whereas slaughter means to kill an animal or people violently.