a noodle
A piece of junk that Australian druggies use to stab up their veins with heroin, crack, or whatever cheap drug they can afford.
@sydneysurf: My needle is so old it looks like a toothpick with a face.
@briangang: I used my noodle to inject meth and now my arm looks like a lobster.
@druggielife: My noodle broke last week and I had to use a pen.