tom turkey vs turkey

tom turkey and turkey both are nouns.

Word	Noun	Adjective	Verb	Adverb
tom turkey	Yes	No	No	No
turkey	Yes	No	No	No

As nouns, turkey is a hypernym of tom turkey; that is, turkey is a word with a broader meaning than tom turkey:

tom turkey: male turkey
turkey: large gallinaceous bird with fan-shaped tail; widely domesticated for food

Other hypernyms of tom turkey include Meleagris gallopavo.

tom turkey (noun)	turkey (noun)
male turkey	large gallinaceous bird with fan-shaped tail; widely domesticated for food
	an event that fails badly or is totally ineffectual
	flesh of large domesticated fowl usually roasted
	a person who does something thoughtless or annoying