A term used while paragliding on small practice hills where you are not able to actually take off, but still able to sit back in your harness so your bum drags along the ground to the bottom of the hill.
-How was the site?
-If the winds were strong, there could be some lift, but without decent wind we were only able to do a few bumrunners.
by Condor2008 April 14, 2009
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