Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
flick-knife is a noun meaning "a pocketknife with a blade that springs open at the press of a button". It carries one recorded sense.
a pocketknife with a blade that springs open at the press of a button
Definitions, synonyms and semantic relations for flick-knife come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.