snot-nosed vs too big for one's breeches

snot-nosed and too big for one's breeches both are adjectives.

Word	Noun	Adjective	Verb	Adverb
snot-nosed	No	Yes	No	No
too big for one's breeches	No	Yes	No	No

As adjectives, snot-nosed and too big for one's breeches are synonyms defined as:

snot-nosed and too big for one's breeches: (used colloquially) overly conceited or arrogant

Other synonyms of snot-nosed include bigheaded, persnickety, snooty, snotty, stuck-up, uppish.

snot-nosed (adjective)	too big for one's breeches (adjective)
dirty with nasal discharge	(used colloquially) overly conceited or arrogant
(used colloquially) overly conceited or arrogant