Crossword clues for the word: SLAPUP The word SLAPUP has appeared as an answer to at least 10 crossword clues on different crossword puzzles. Crossword clues for SLAPUP Showing 1 to 10 of 10 results Clue(s) “Great!” "Excellent, in British lingo" "Excellent, in Exeter" "Excellent, to a Brit" "First-rate, in Rugby" "Top-notch, to a Brit" Drink with drink in it? Excellent! Extravagant friends? Lavish (4-2) Top-hole