freewheel
     n : a clutch (as on the rear wheel of a bicycle) that allows
         wheels to turn freely (as in coasting)
     v 1: live unhurriedly, irresponsibly, or freely; "My son drifted
          around for years in California before going to law
          school" [syn: {drift}]
     2: coast in a vehicle using the freewheel
Source: WordNet® 2.0