A Boston is a very nice person and will be very nice to anyone. He is also very sexy and will be a nice person

The definition of a Boston is very handsome.
by Botony September 22, 2019
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The sexual act of filling your asshole up with whipped cream then proceeding to fart said cream into your partner's mouth.
Ben: Baby give me a Boston Cream Surprise tonight

Stacy: Ew.
by Dirk Dasterdly August 14, 2021
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When a girl is full spready, man comes in with swift uppercut to the meat flaps.
by Stephasuaurs June 5, 2018
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Is a table tennis stroke that never works. Typically used by dads who think there jokes are hilarious
Hey g watch me win with this Boston slice
by Ehokey January 15, 2018
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When a male gyrates the hips in such a motion, that his scrotum hits the gucc to create a clapping sound
Bruh, I can Boston Clap without any pain.
by Fatman and Little Boy September 9, 2019
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After the consummation of intercourse, the male mushroom cap drags a wad of semen out onto the carpet when the male pulls out.
Jim left a load on his girlfriends carpet by using his patented Boston Backblade maneuver.
by BFD137 February 20, 2017
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