Sagging is a way to wear pants which reveal much of the underwear or part of the butts. The fashion is spread among male teenagers particularly in urban areas. Greg Mathis explains that the sagging is coming from the prisoners in the United States where the belts are not permitted as they can be used as weapon by prisoners or they can commit suicide with.
The Hip-Hop artists used them in the 90’s and it became a symbol of freedom and cultural belonging among youths in certain community willing to show the rejection of some values of the society.
Mathis mentioned also that the sagging as a sexual meaning, particularly in the prisons, when pants are down the lowest and show the behind more raw could be a sign of an invitation.