When two guys are double penetrating a girls vagina the guy who is doing her doggy style slips out and sticks it in her ass. But you have to have a camera to see her face.
Her face is so funny when she gets the birthday surprise.
by meatnormous August 7, 2006
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A sexual maneuver in which, on the recipient's birthday, the birthday person bends over in the dark. A large black candle is then carried in and "Happy Birthday" is sung. As the song concludes, the candle is lit and inserted into the ass of the person. The candle is thrust into the ass, once for each year of the person's age. At this time "Are you 1? Are you 2?..." is chanted. The candle can then be removed.
"Yeah, it was Debbie's birthday last weekend...We gave her a Birthday Surprise, she couldn't walk right for a week."
by lmerfudd October 9, 2008
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1. when a man blow's his load on a girl's face, tits, ass, etc.

2. the jizz, spermy's, cum
Last night I was fucking this slut, then I pulled out and gave her the birthday surprise.
by BH October 10, 2003
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a black wax candle is used in anal intercourse. Traditionally, Happy Birthday is sung as this is done.

omg. for my 19th birthday jack gave me a birthday surprise!
by hellogoodbye123456 October 15, 2008
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Given on someone's birthday, this involves tying down the recipient and attacking them with tentacles shaped like giant penises, followed by urinating on them. While this may sound unpleasant to the average person, there are at least 20 different hentai mangas devoted to this very subject.
Geoff: Happy 22nd, Jamie! Now it's time for your Japanese Birthday Surprise!

Jamie: Japa-what? What the hell are you... oh my god AGGHHHHHHHHH

(screams of agony are heard)
by Jeff Shewer May 18, 2009
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A Harry Belafonte birthday surprise is when a man inserts his penis into a birthday cake and farts, or 'queefs', out of his' penis into the cake, leaving the expelled gas in the cake.
The cake taste bad because I performed a Harry Belafonte Birthday Surprise.
by MSU TS May 15, 2007
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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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