rowdy vs plug-ugly

rowdy and plug-ugly both are nouns.

Word	Noun	Adjective	Verb	Adverb
rowdy	Yes	Yes	No	No
plug-ugly	Yes	No	No	No

As nouns, plug-ugly is a hyponym of rowdy; that is, plug-ugly is a word with a more specific, narrower meaning than rowdy:

Other hyponyms of rowdy include bullyboy, muscle, muscleman, skin, skinhead, tough guy.

rowdy (noun)	plug-ugly (noun)
a cruel and brutal fellow	someone who bullies weaker people

rowdy (adjective)	plug-ugly (adjective)
disturbing the public peace; loud and rough