be full of (oneself)

be full of (oneself)

To be arrogant and conceited. Andrew seems to honestly think that he's the greatest scholar of our time—he's so full of himself! You're certainly full of yourself these days. The rest of us have opinions worth hearing, too, you know! Thankfully, Bill isn't full of himself now—he's still the same humble guy he's always been, just with a PhD.

See also: full, of

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