What is Antiversary?
1.
{n} a contraction of 'anti' and 'anniversary'. The date of a breakup/divorce, etc.
September 6th is my antiversary.
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2.
The anniversary of one's breakup. Sometimes celebrated by people with a sense of humor.
Justin isn't your antiversary coming up?
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Random Words:
1.
The step brother of your step brother or step sister. No, NOT you or your brother.
PAT: Okay, Kelly, this is Bob, my side-step-brother..
1.
sticking your dick in wrong girl (i.e. cheating)
Girlfriend: So he got a room with his "friend" for a night and claims nothin..