mug vs pudding-face

mug and pudding-face both are nouns.

Word	Noun	Adjective	Verb	Adverb
mug	Yes	No	Yes	No
pudding-face	Yes	No	No	No

As nouns, pudding-face is a hyponym of mug; that is, pudding-face is a word with a more specific, narrower meaning than mug:

mug: the human face (`kisser' and `smiler' and `mug' are informal terms for `face' and `phiz' is British)
pudding-face: a large fat human face

Other hyponyms of mug include pudding face.

mug (noun)	pudding-face (noun)
with handle and usually cylindrical	a large fat human face
the human face (`kisser' and `smiler' and `mug' are informal terms for `face' and `phiz' is British)
a person who is gullible and easy to take advantage of
the quantity that can be held in a mug

mug (verb)	pudding-face (verb)
To stare awkwardly
rob at gunpoint or with the threat of violence