by Helpful_Vaporeon November 29, 2017
The act of sticking one's penis in a significant others' birthday cake and using the tip of the penis as a serving knife
Kathy's mom was shocked to see Kathy's boyfriend using his birthday cock to cut the imported tiramisu
by billclintonsblowjobs March 02, 2015
the act of eating and swallowing another human's feces, throwing it back up on their penis, then sucking their penis until they ejaculate.
by mrs. p January 14, 2009
by LingDanc803 April 12, 2023
Something a female figure (i.e Mother,Sister, Step-Sister, Lesbian Friend, and or Wife/Girlfriend) give a male figure for their birthday. It is an act of sucking the "cock" aka the Penis on their birthday. And since its the male figures birthday, they get to have their way with the female figure (i.e rough and tough)
Hey Sally it's Jareds birthday!
Oh does that mean I have to do Birthday Cock?
Oh yes, yes, yes. And its going to be fun.
Oh does that mean I have to do Birthday Cock?
Oh yes, yes, yes. And its going to be fun.
by SovietMcDonalds November 26, 2018