manniversary

The day to be remembered when to guys became good friends. Often celebrated with heavy drinking,throwing up, and passing out. The day itself is usually forgotten due the drunken haze of the day so it is celebrated around the same general time each year.

Joe1: You know Joe it was around Labor Day last year we hung out out at your place and got shit faced, Good Times

Joe2: Your right and its about that time of the year now. Happy Manniversary bro.

Joe1: Happy Manniversary