Thunderbed is the competition between two males in which each male must attempt to successfully penetrate and rape the other man on a bed. (The play area.) The competition ends when one opponent successfully mounts the other or a single opponent yields. It's not gay, it's about dominance.
by AtrusRand May 19, 2008
Were you doing a little thunderbation last night?
by djarm67 July 24, 2009