Bangaversary

Yearly date conmemorating the day a couple first engaged in sexual intercourse.

Three years ago this day, I banged you for the first time. Happy 3rd Bangaversary!

by Ching Chang Chong March 11, 2008

Bianniversary

The celebration of two years.

(not to be mistaken with dianniversary)

They got together on christmas 2005, so their bianniversary was on christmas 2007.

by The red willows com June 17, 2009

bunniversary

The anniversary of the bunneh-getting

Hey! It’s my ten-year bunniversary! I’ve had this long haired idiot for a decade

by Hi duehdbe September 12, 2020

badiversary

The name given to any date that is the anniversary of an unpleasant event or memory.

Yeah, I am sad, its the first BADIVERSARY of my break up with Kate.

by Blair&Zac January 1, 2021