To play an online game (usually MMORPG's (massively multiplayer online role playing games) but utilising the advantages of having more than one character.
This is often frowned upon as it can sometimes be classed as a form of cheating in the more hardcore roleplaying society.
Player 1 Has logged on as Mary.
Player 1 Has logged off.
Player 1 Has logged on as Dick.
Player 2: Hey stop multicharing!
November 21, 2006