'puff up' definitions:

Definition of 'puff up'

From: WordNet
verb
Make larger or distend; "The estimates were puffed up"
verb
To swell or cause to enlarge, "Her faced puffed up from the drugs"; "puffed out chests" [syn: puff, puff up, blow up, puff out]
verb
Become filled with pride, arrogance, or anger; "The mother was swelling with importance when she spoke of her son" [syn: swell, puff up]
verb
Praise extravagantly; "The critics puffed up this Broadway production" [syn: puff, puff up]