When a female performs the act of sitting (i.e.
straddling) on a males mouth, nose, and/or general
facial area. Men "teabag" women, usually on the forehead, but not contained only to that area, while women "
lunchmeat" their male counterparts. In other words, if you opened a package of sliced lunchmeat and shoved your face into the side, you'd essentially be replicating this act.