pillock vs pudding head

pillock and pudding head both are nouns.

Word	Noun	Adjective	Verb	Adverb
pillock	Yes	No	No	No
pudding head	Yes	No	No	No

As nouns, pillock and pudding head are synonyms defined as:

Other synonyms of pillock include dolt, dullard, poor fish, pudden-head, stupe, stupid, stupid person.

pillock (noun)	pudding head (noun)
a person who is not very bright	a person who is not very bright