The embarassing act that occurs when a male gets an erection while sitting at his office or cubicle, and his untimely wood presses against the bottom of his desk. Deskthumping is easily hideable, but uncomfortable nonetheless.
"When I was checking out porn at my desk instead of doing data entry, I popped some wood and started deskthumpin'. Good thing the human resources lady didn't catch wind of it"
by Rocmistro August 11, 2005