clod vs stumblebum

clod and stumblebum both are nouns.

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

As nouns, clod and stumblebum are synonyms defined as:

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

clod (noun)	stumblebum (noun)
a compact mass	an awkward stupid person
an awkward stupid person	a second-rate prize fighter