lummox vs stumblebum

lummox and stumblebum both are nouns.

Word	Noun	Adjective	Verb	Adverb
lummox	Yes	No	No	No
stumblebum	Yes	No	No	No

As nouns, lummox and stumblebum are synonyms defined as:

Other synonyms of lummox include clod, gawk, goon, lout, lubber, lump, oaf.

lummox (noun)	stumblebum (noun)
an awkward stupid person	an awkward stupid person
	a second-rate prize fighter