Ally: "What do you think of Tony Cox?"

Meghan: "Aww, he's such a cute little boston butt!"
by Loudlove November 21, 2010
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A word used to describe the large posterior of a female.

dayum she sure does have a boston butt
by thepenismeister February 10, 2009
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The original meaning of of the gay 9 man baseball team from Boston Massachusetts, that likes to ram baseball bats up each other’s buttholes prior to each game
The Boston Butt Cocks lost 5-2 against the Baltimore Whorioles!”
by Jordan Breyer August 21, 2018
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The act of being sexually assaulted willingly by two gay firefighters from Boston in a hot tub in Mexico while your wife is getting banged by your best friend in your resort room.
Dave enjoyed a BOSTON BUTTS in the hot tub with Tyrone and Bruce while his wife, Laurie, was having great sex in the hotel room with "the man and the legend."
by WurstNightmare February 26, 2021
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A cut of pork roast from the hind end of a pig
My wife makes a delicious boston butt roast for Sunday dinner on special occasions
by FahQuewDewd April 05, 2021
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