Sentence:  Bikes are pointing their noses in the air nowadays with the help of a new gadget called the <WSD>Wheelie</WSD>-Bar. By attaching the device to the rear of your cycle, you can tilt back on the hind wheel; wooden skate rollers at the end of the bar let you ride high, the way stock-car dragsters do. 
Meaning of the word marked with <WSD> tags:  An action or stunt where a bicycle, motorcycle, or other vehicle is ridden for a short period while it is standing only on its rear wheel or wheels.