A sexual act akin to Cleveland Steamer or Bilbo Baggins. Also a dessert item.

Step 1- Defecate and shape into small brown patties.
Step 2- Ejaculate on top of the patties

Step 3- Frost the top with fudge.

Serve while warm.
Little Susie- Ms. Bollmeier's Birthday Surprise treats sure were good!

Little Billy- Oh MY GOD!! You actually ate that shit?1? Do you have any idea what goes into those?

Little Susie- Don't tell me... I feel sick...
by Lynn Bollmeier May 21, 2009
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Birthday Surprise

If you pull your dick out at your birthday party preferably a chode it's a birthday surprise
Yo Zane whiped his birthday surprise out at his birthday party.
by Chodeboi69 September 19, 2018
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Surprise Birthday

The act of shoving your fist into a late pregnant lady and pulling the fetus out.
I really wanted Jim to be born on 4/20, so I gave him a surprise birthday.
by DMTisGreat October 21, 2019
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