Creeper Cake is served when a Facebook creeper
gives birthday wishes to every single one of his/her facebook friends on their birthdays.
This kind of creeper uses Facebook
simply as a matter of wishing others happy birthday, despite the fact that they have never spoken to any of his/her Facebook friends in real life.
When this kind of creeper wishes someone a happy birthday on Facebook, it is known as Creeper Cake.
"How many birthday wishes did you get on Facebook
"I don't know, but I got tons of Creeper Cake from people I don't even know"
"That Becky girl is such a Facebook creep
. She loves giving out Creeper Cake to everyone on their birthdays"