Birthday dick is a really large or satisfying penis. Usually only experienced every once in a while.
by Ebonykeys April 26, 2017
Get the birthday dick mug.by Dicktionary Uber Legend January 12, 2022
Get the Birthday Dick mug.Happens the morning after a man ejaculates and doesn't wash his penis, the result is a penis covered in frosting, just like a birthday cake.
by Rustyrastafari August 3, 2020
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