mark: yo dude, guess what?  jay: what?  mark: dude, it's my amiversary with erin today - she added me on facebook exactly a year ago
the anniversary of adding a friend on facebook
"mark: yo dude, guess what?  jay: what?  mark: dude, it's my amiversary with erin today - she added me on facebook exactly a year ago" What is the definition of "amiversary"?