A blowjob consisting of a penis covered in Nutella or other chocolate spreading and the "cream" is the cum.
I covered my dick in chocolate and I gave her a Boston cream pie.
by Mr.wRight May 28, 2014
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The act of ejaculating in a particularly dark anus, generally stained with crusted feces. While the anal color may vary, the act is most often associated with a deep chocolate colored butthole.

Anal Creampie

Nutter Butter
Bro 1: Dude, I blew the hugest nut in Tiffany’s asshole this morning. I swear she never wipes her ass when she shits!

Bro 2: You gave your girl a Boston Cream Pie? Go clean the shit outta your dick hole. Nasty mother fucker.
by Mega Hemroids November 5, 2020
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When a man ejaculates and urinates inside a woman's vagina. Then she pushes it out into his mouth to eat.
I was so wasted last night I let my girlfriend give me a Boston cream pie.
by Iggy54 October 17, 2017
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The act of taking someone’s dick, after creating truffle butter, and aiming the projectile load towards that persons eye.
He was really pissing me off so I let him hit me in the ass, then quickly gave him a Boston Cream Eye.
by Brimclau123 January 28, 2020
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When you take a turkey baster and fill it with Boston cream, then stick it up somebody's ass, and when the ass is fully loaded with Boston cream you squeez their butt cheeks together and suck the boston cream out using your mouth.
Karps dad comes enters karps room and says "hey son u wanna boston cream Steven." Karp responds "Oh Steven of course i do." Karp jams the baster up Stevens ass And fills it with the yummy cream. He then squeezes the cheeks together and sucks out the wonderfull sensation.
by Mikess January 15, 2007
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The sexual act of a large group of men ejaculating in a women's mouth then when everybody's finished in her she spits it out all over a chocolate fudge vanilla cake and serves it up to a dog and then legend has it the dog gets sick and throws up all of the semen all over her chest and then she attempts to shove as much throw up in her pussy as possible through a injecting device then spit it back out of her pussy again onto the dog. It's usually common to find the men wearing David Ortiz Red Sox jerseys and listening to the Dropkick Murphys while they are unloading in the women's mouth just to make it more Bostonish.
"Paris Hilton just got a boston cream pie by 10 midgets and a couple of homeless guys"
by viggy1990 August 25, 2014
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When you blow your load in a chicks ass and she shits on your dick !! at the same time
( Boston cream Pie ) Dude i cream pied a Cute girl last night and she lost control and shit on my dick at the same time ,,,Wow you guys made a Boston creme pie
by Pervertboy86 August 28, 2022
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