shiftdelete 

1) to permanently delete file(s) on a Windows-based computer.

2) A euphemism for the curse word "shit"

holy mother bull shiftdelete! I just shiftdeleted all those files!

shiftdelete by J-Diddy March 20, 2003

Shift-Delete 

This is the process of sending an e-mail then immediately going into sent mail and doing a SHIFT-DELETE to remove the e-mail without going throught the deleted items folder. This is an appropriate tactic when sending sexually explicit e-mails that you don't want recorded by anyone.

We were exchanging very hot and steamy e-mails at work so we immediately SHIFT-DELETED them.

Shift-Delete by Nightraider December 3, 2007