The act of doing a female doggy style and after you have finished you surprise her by grabbing a sandbag and dropping it on the back of her head to knock her out while yelling "Sandbag Surprise".
Dude did you hear about Veronica? I guess she just got out of the hospital, some doushebag gave her a Sandbag Surprise.
by i have done this before =] January 15, 2010