bozo vs fathead

bozo and fathead both are nouns.

Word	Noun	Adjective	Verb	Adverb
bozo	Yes	No	No	No
fathead	Yes	No	No	No

As nouns, bozo and fathead are synonyms defined as:

Other synonyms of bozo include cuckoo, goof, goofball, goose, jackass, twat, zany.

bozo (noun)	fathead (noun)
an informal term for a youth or man	a man who is a stupid incompetent fool
a man who is a stupid incompetent fool