The act of dry humping in a dogie style position detected towards the anus
I 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
The Act of Dry Humping The butt.
that guy is buttrumping that other guy!
by Caleb Cardinell May 21, 2008