Crossword clues for the word: SOUPSUP The word SOUPSUP has appeared as an answer to at least 5 crossword clues on different crossword puzzles. Crossword clues for SOUPSUP Showing 1 to 5 of 5 results Clue(s) Adds horsepower to Adds horsepower to, and a hint to the starred answers' hidden words Gives pep to Makes more powerful Makes more powerful, as an engine (2 wds.)