A memory stick or card which is used for the exclusive transportation or storage of porn.
Jim: "Dude, is that a 16GB mammary stick you've got there?"

Dude: "Sure is. 16GB of the finest boobs the porn industry has to offer."

Jim: "Mammtastic!"

Dude: "You got it..."
by Doggstarr September 9, 2009
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Good mammary that's a hairy ass!
by Anonymous April 30, 2003
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when you say thanks for what gals have, perhaps one special gal in particular
thanks for the mammaries, i couldn't have done it without them
by jaffaw July 16, 2009
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This is what a lady bears the morning after you've given her a pearl necklace
Bloke: I had a fantastic time last night
Girl: Yeah - but I've got terrible mammary dandruff
by Chrissy-Boy June 26, 2004
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