Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
cut-up is a noun meaning "someone who plays practical jokes on others". It carries one recorded sense.
someone who plays practical jokes on others
Definitions, synonyms and semantic relations for cut-up come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.