Im in ur ______ ______ing ur ______


<img src=" combo, as you use a washable marker to tell everyone, "im in ur mom, borking your unborn retarded sister". OK, that's maybe a bit much, but I'm hardcore, jerks.

And it's under $20, so with markers and shipping you can get a perfect gift for your perfect geek and a perfect price. Why don't we have some fun here? use the comments and tell us: I'd like to see what of mine you're -ing, and where.

IM in UR BLANK [ThinkGeek]