Bacchanal is a noun that means a wild drunken celebration. It can also be an adjective that means related to the god of wine.
Bacchus is the Greek god of wine and revelry. Our word of the day may be used as an adjective to refer to this deity, but is most frequently used to refer to a party or celebration that is very much in the spirit of Bacchus.
Kevin used to live a pretty wild life. He often spent weeks jumping from one bacchanal to another.