Definition of schlump in English:

schlump

noun

North american
informal
  • A slow, slovenly, or inept person.

    ‘when he wakes up, the poor schlump finds himself in a gleaming modern Shangri-La’
    • ‘No matter what you do you still look like a schlump.’
    • ‘The cartoon shows some helicopters, tanks and paratroopers converging on a suburban house; a typical schlump who looks like the sort of New York exurbanite not quite witty or lustful enough to get into a Cheever tale stands in the door.’
    • ‘Not long ago he was just another loveless schlump on Broadway earning bad reviews.’
    layabout, good-for-nothing, sluggard, slug, laggard
    View synonyms

Origin

1940s: apparently related to Yiddish shlumperdik dowdy and German Schlumpe slattern.

Pronunciation:

schlump

/ʃlʊmp/