Simple past tense and past participle of slather.(verb)
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Use "slathered" in a sentence
"His face and image are in every picture, always laughing and getting out of a yellow Ferrari or private airplane with his name slathered on it."
"Via John Aravosis, it seems that John "at least I don’t slather on the makeup like a trollop" McCain slathered out over $8600 for makeup in September alone."
"My Dad once described his life as being "slathered" with blessings."