The next big Terrorist Attack on American soil. Guaranteed to be worse than the 911 attack because 912 is 911 plus 1. May or may occur on September 12th.
Don't board a plane, train or bus today, Osama is going to unleash 912.
The act of applying wall filler to someones bum crack whilst they are unconscious. This will then leave a smooth finish across their backside which you will then apply women's foundation to acquire the correct skin tone. The victim will awaken to believing the he/she never had a butt crack.
"Jack got so drunk last night that we managed to 912 him."
"Jack had such a bad case of diarrhea that we just had to preform an emergency 912."