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1.
1. The appearance of a woman's breasts that look larger than they are from excess padding from a padded bra.

2. A padded bra.
Swank: "Damn, that girl has enormous boobs."

Garren: "Nah, she's sporting a shamrack. Stormer saw her with her top off."
by Garren August 03, 2007

Words related to shamrack

boobs breasts funbags sham size