look up any word, like jamflex:
 
1.
The result of having no breasts. It appears that your chest is flater than your collar bone.
Damn, her chest is so flat that she's got concavage. Her cleavage is inverted!
by Christopher B. S. April 06, 2005
 
2.
The result of having no breasts. It appears that you chest is flater than you collar bone.
Damn, her chest is so flat that she's got concavage. Her cleavage is inverted!
by Christopher B. S. April 05, 2005