by wussy puss April 18, 2018

If you have a high bone density, then you have a hard shell- meaning a skeleton that is tough to break or fracture.
by Urbandefinitionsaremypassion December 11, 2017

"Tim, how did this happen? You're studying for your organic chemistry final. You shouldn't be aroused."
"I went to the couch to study. Now I have a hardware hard-on."
"I went to the couch to study. Now I have a hardware hard-on."
by kazbah May 8, 2013

by ann1564++ December 31, 2008

by chillagen June 10, 2005

by Jake Gibson June 3, 2003

by Payn March 1, 2014
