Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
stick-in-the-mud is a noun and adjective meaning "someone who moves slowly". It carries 2 recorded senses.
(used pejoratively) out of fashion; old fashioned
“moss-grown ideas about family life”
Definitions, synonyms and semantic relations for stick-in-the-mud come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.