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The smallest cup size for a woman's breast, the actual size of the breast does not usually exceed the size of the nipple. They are nice because they won't sag as you get older or give you stretch marks, but bad because people will make fun of you for being flat and you might not get as many boyfriends.
Dick: "Michelle's pretty, but she only has an a cup."
Regina: "That's because she's a ballerina!"
by thisismealex February 11, 2008
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9
A cups are the best boob size! For everyone thinking A cups are small, they are actually very big, and you are jealous because you're either flat-chested or you have like big fat saggy boobs.
Hawt Guy: Whoa, man! Check out that chick! Her boobs are huge! I'll bet she's an A cup!
Other Hawt Guy: Yeah! She's totally hawt!
by Candygirl23 February 19, 2007
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11
quarter ounce of pot

Instead of saying i want to have a quarter ounce of pot, say i want an a cup because an s cup breast is technically supposed to weigh quarter of a pound each
Yo, can i get some of that a-cup
by Ian F. June 30, 2007
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12
bra cup size that is so small you have to wonder why she even bothers to buy one let alone ear it.
She must be an A-cup, her nipple and her breast are one and the same
by Junior January 05, 2004
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13
bra size for people who want to think that they have boobs but really don't. in reality they are flat chested.
girl one: i went out bra shopping today,got myself a 32b.
girl two: omg i'm jel i'm only an a-cup..
girl one: (slowly backs away)
by hatingonyouu... July 11, 2013
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