hobo hairdryer

When you don't have enough time, or don't care enough, to use a hairdryer. Thus, you put all the windows down in your car and let the wind do all the work.

(Not to be confused with a hippie hairdryer, which involves the same concept, but includes the use of a bike instead. This version is "greener",from which is derived its condition of being "hippie".)

Works best for guys.

Or girls with short hair.