Crossword clues for the word: GRUMPROAST The word GRUMPROAST has appeared as an answer to at least 3 crossword clues on different crossword puzzles. Crossword clues for GRUMPROAST Showing 1 to 3 of 3 results Clue(s) Friars Club salute to a sourpuss? Tribute to a curmudgeon? Tribute to a sourpuss?