puffed up

adj — 2 senses

adj

Inflated.

Figuratively Proud, presumptuous.

Since he was elected school prefect, he’s become really puffed up.
[T]each thy Incubus to Poëtize, / And throvve abroad thy ſpurious Snotteries, / Vpon that puft-vp Lumpe of Barmy froth, […]1601, Ben Jonson, Poetaster or The Arraignment: […], London: […] [R. Bradock] for M[atthew] L[ownes] […], published 1602, →OCLC, Act V, scene iii, signature L4, recto:

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