full backal 

The full shot from behind someone. The opposite of a full frontal.

When she was walking away, I got a shot of the full backal!

full backal by Lovey III November 16, 2010

full-backal 

The opposite of full frontal, when someone is seen completely nude from the back.

"Gail's never gone the full Walkabout."
"True, true. Gail's only gone as far as full-backal."

full-backal by Jeff Murdock January 1, 2010