Halfiversary

Like an Anniversary, but a celebration for six months in a relationship, friendship, etc..

Hey babe, its been six months! Happy Halfiversary!!

by Anonymously Jay October 13, 2016

halfiversary

A couple's 6 month anniversary (similar to a half birthday).

Prem and Becky got married on July 11th, so they celebrated their halfiversary on January 11th.

by Premdawg January 12, 2011