Having a pad in one's underwear, as a result of menstruation.
Girl 1: Why ain't you having sex with your boyfriend? You seem so tense.
Girl 2: I didn't want no sex, since I'm on the rag.
Girl 1: I thought you might be. I see some blood on your white skirt.
Girl 2: OMFG
(adj) When a woman is "on the rag", that means she has her period. Usually she's bitchy
Hey yo, this auntie seems to be on da motherfuckin' rag!
Refers to when someone is on a rag, or is otherwise on top of a raglike device, perhaps in order to keep his feet or her feet away from the spiders and germs that crawl around on the floor, or perhaps to provide a better view over a wall. Sometimes people get on the rag in order to change a lightbulb, or in order to reach a high light socket in order to change a broken bulb. Getting on the rag also refers to standing on a rag that is on top of another rag, perhaps in order to see over a slightly higher wall.
On the rag can also refer to brutally dismembering a prostitute.
KFC kings cross provide a bespoke footwear deep fry service. Deep fried shoes or trainers are often referred to as rag. Thus being on the rag can mean wearing deep fried footwear.
You dirty On the Rag
A term to denote somebody with a bad attitude.
"Dude, why are you always on the rag?"