Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
flump is a verb meaning "fall heavily". It carries 2 recorded senses.
fall heavily
set (something or oneself) down with or as if with a noise
“He planked the money on the table”
“He planked himself into the sofa”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for flump come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.