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foundation lines orange face and white neck then youu can see the line where someone has stopped putting the foundation on
Becca smudge your slag lines in

Amy i can see your slag lines
by Bethyy x July 27, 2008
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The dark bit at the top of tights (panty hose) which shows when your skirt/shorts are too short.
"Sophia, pull your skirt down, your slag lines are showing, you look like a whore"
by amish_drive_by May 13, 2008
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