Drunk Millionaire

A person who when incredibly intoxicated proceeds to buy round after round of drinks/shots for friends when out at the bar with absolutely no disregard for his/her bar tab at the end of he night.
Normally wakes up next morning in shock when said person looks at crumpled up bar tab receipt.

guy 1#: why are we out drinking with john again? you know he he gets really obnoxious after an hour?
guy 2#: yea i know, but after he's had a few he turns into a drunk millionaire and we don't pay for anything for the rest of the night.