Yellow phlegm is normally a sign of an infection, or a case of the common cold. Greenish or brownish phlegm is nearly always a sign of infection. Greenish or rusty phlegm or phlegm with rusty spots can also be a sign of pneumonia. Coughing up brown phlegm is also a common symptom of excessive smoking.
A flowboard is a variation on a skateboard, combining aspects of surfing, skating and snowboarding.
Fiberboard, which is most commonly associated with medium-density fiberboard, or MDF, is an engineered wood product made from wood chips, plant fibers and other materials. Widely used in the manufacture of cabinets, furniture and many other products, fiberboard contains potentially toxic products that make recycling the material difficult.