Crossword clues for the word: SLATHER The word SLATHER has appeared as an answer to at least 10 crossword clues on different crossword puzzles. Crossword clues for SLATHER Showing 1 to 10 of 10 results Clue(s) "Pour on, as gravy" Apply lavishly Apply, as 42 Down Lay it on thick Lay on thick, as mayo Spread lavishly or thickly Spread liberally Spread on thick: Colloq. Spread quickly Spread thickly, as sunscreen