1 definition by foswizz
When you're engaged in sexual intercourse, typically in the doggystyle position, and you fuck so hard that your hip bones are hitting her assbones to the point of physical pain.
"shit dude i was hittin the bump stops in that $1.20, it was a mercy root i swear"
"Man I was smackin the guts out of the missus last night, goin so hard i hit the bump stops"
"Man I was smackin the guts out of the missus last night, goin so hard i hit the bump stops"
by foswizz August 15, 2008