Chativersary 

The celebration of the day of your initial online contact via a dating site, a messenger service, etc etc.

OMG. I've been talking to Bob on match.com for 6 months today! It's our chativersary!!!

Hi SexyBod4238! Happy Chativersary! I got your this online flower bouquet and ecard!!

Chativersary by hawthorne1234 February 7, 2010

Cohabiversary

The anniversary of living with someone for a year

We're coming up to our cohabiversary next week. This is serious!

Cohabiversary by TakeMeAnywhere July 16, 2014

Caniversary 

The celebatory date that you got a much anticipated severence package from a job you hated or were planning to leave anyway.

"I thought I'd pick up some champagne and a cigar to celebrate my Caniversary - one year ago today!" said Terry.
"Screw You- I still can't believe you got 18 months salary to leave that piece of crap job especially when you were going to quit anyway!" said Larry.

Caniversary by bingo lingo January 24, 2010

Centiversary 

Revolving mark of a Century. A Centiversary is like an Anniversary, only instead of being annual, it's centurial, or every 100 years.

In January of 2013, CalNORML and N.I.C.Events are hosting the first and LAST Centiversary Party of all time to mark the 100th year of Cannabis Prohibition in California, and hopefully the end of the Hundred Year War on Marijuana!

Centiversary by NIC CoughMan December 5, 2012

camiversary

The anniversary of her/his years spent camming.

That is to say; noting the passage of time in years from the date she/he entered the industry (porn) as a Cam Model.

She will feature a special show tonight to mark her 10 years camiversary.

camiversary by PopePeeWee February 20, 2022