look up any word, like dirty sanchez:
 
1.
1. The part of a software product that the user does not interact with.
2. See booty.
1. We've isolated that problem in the backend.
2. That backend is a fantastic site.
by The Grammar Nazi October 21, 2001
 
2.
a backbend is when you are standing up and you bend all the way back, hands on the ground and feet on the ground too, and back is arched all the way up.
she is doing the backend really good!
by c0ldfire February 04, 2010
 
3.
the hit it from the back to have anal sex
im a back end that bitch
by xoxolynxoxo September 10, 2006