A sex act involving a group of dry masturbating gentlemen and or gentleladies where upon the completion of climax fist bumps between group members abound.
Kevin, Connor, Matt and Isak, sampling a fine sherry, did the raw bumper into the night. In the morning, their hands and fists were equally tired.
by DoubleDutchRudder May 19, 2018
Get the Raw Bumpermug.