When a female is carrying a purse and the strap is separating and accentuating her boobies.
When an overweight girl is carrying a purse and the purse strap is buried in the (grand canyon) space between her boobs, that girl is experiencing Purse Boob. Although some purse boob experiences are pleasant to observe, this type of purse boob is discouraged.
by TheBIGhause October 23, 2013
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