kisser vs pudding face

kisser and pudding face both are nouns.

Word	Noun	Adjective	Verb	Adverb
kisser	Yes	No	No	No
pudding face	Yes	No	No	No

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

kisser: 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 kisser include pudding-face.

kisser (noun)	pudding face (noun)
the human face (`kisser' and `smiler' and `mug' are informal terms for `face' and `phiz' is British)	a large fat human face
someone who kisses