fruitcake vs geek

fruitcake and geek both are nouns.

Word	Noun	Adjective	Verb	Adverb
fruitcake	Yes	No	No	No
geek	Yes	No	Yes	No

As nouns, geek is a hypernym of fruitcake; that is, geek is a word with a broader meaning than fruitcake:

Other hypernyms of fruitcake include eccentric, eccentric person, flake, oddball.

fruitcake (noun)	geek (noun)
a rich cake containing dried fruit and nuts and citrus peel and so on	a person with an unusual or odd personality
a whimsically eccentric person	a carnival performer who does disgusting acts

fruitcake (verb)	geek (verb)
	to be intoxicated