back-stap 

When you staple a paper or anything else for that matter but you do it backwards so that the sharp ends are facing you.

The stapler is facing the opposite way.

back-stap by Smoothal April 25, 2005

backstapper 

Haley's spelling of backSTABBER.
She also thinks awesome is spelt,
"alsome" someone educate the child (:

"Now here's one thing I hate and thats a backstapper! "

"*Back bend on a tabel... now thats alsome"
-cannot spell table either-

"My Star Is Freakin ALSOME"

backstapper by A Concerned Person January 11, 2009