schlump

is likely misspelled.

has no English definition.

As a noun schlump

is someone who is lazy, slovenly, or dull-looking.

In slang|lang=en terms the difference between schlump and schlomp

is that schlump is (slang) someone who is lazy, slovenly or dull-looking while schlomp is (slang) to move in a slumpy, flaccid manner.

As nouns the difference between schlump and schlomp

is that schlump is (slang) someone who is lazy, slovenly or dull-looking while schlomp is (slang) an individual with a flaccid demeanor and physical affect, not toned physically.

As a verb schlomp is

(slang) to move in a slumpy, flaccid manner.