Fig. to do (something) well or thoroughly. John gave a good account of himself when he gave his speech last night.Mary was not feeling well, and she didn't give a good account of herself in last night's game.
Behave or perform creditably, as in Harry gave a good account of himself over the last few months, or The company will probably give a good account of itself in the next quarter. This expression transfers a financial reckoning to other affairs. [c. 1600]