What is Slag Lines?
1.
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
See
2.
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"
See
