An indicent where you have just done or accomplished something incredibly good, but instead of going to a party to celebrate this you go home and masturbate your ass off. You just did something incredible so that makes you extra happy, thus turning you on more.
We won the football game, but instead of going to the party we all went up to the locker room and had a masturbation celebration.
by A shitty excuse for a name November 1, 2006
Get the Masturbation Celebrationmug.