A printing mistake that reveals several obscene words in the comic book. It has text where Batgirl tells a group of bad guys "Text every friend you've got, s---heads," and "Sell your poison somewhere else. 

This here arcade belongs to the f---ing Batgirl," reports the New York Post.

"A printing gaffe has caused a problem with All Star Batman, as soon as the problem was discovered, we quickly asked retailers to pull the issue, we apologize to our retailers and fans for any offense or inconvenience," Fox News quoted a DC Comics spokesperson, as saying in a statement.
 
DC comics spokesman revealed swear words were supposed to have been blacked out, but two shades of black were used and the expletives are clearly legible.
 
DC Comics was able to stop some shipments, and has asked retailers who got copies to destroy them.