WordNet
too big for one's breeches
adj. used colloquially of one who is overly conceited or arrogant; "a snotty little scion of a degenerate family"-Laurent Le Sage; "they're snobs--stuck-up and uppity and persnickety" [syn: bigheaded, persnickety, snooty, snot-nosed, snotty, stuck-up, uppish]