goofball vs twat

goofball and twat both are nouns.

Word	Noun	Adjective	Verb	Adverb
goofball	Yes	No	No	No
twat	Yes	No	No	No

As nouns, goofball and twat are synonyms defined as:

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

goofball (noun)	twat (noun)
a man who is a stupid incompetent fool	obscene terms for female genitals
a person who amuses others by ridiculous behavior	a man who is a stupid incompetent fool