The Act of Dry Humping The butt.
that guy is buttrumping that other guy!
by Caleb Cardinell May 21, 2008
The act of dry humping in a dogie style position directed towards the anus
kiss her softly, then turned her around and began to buttrump her as i kissed the back of her neck.
by Caleb Cardinell February 04, 2010