The act of bailing on someone when you already has plans made with the person, usually followed by an excuse or something lame.
Sean: "Hey, I can't wait for tomorrow!"
Ted: "Hell yea bro! I'm so psyched!"
Sean: "Ted, you pulled an Allison!"
Leaving your job behind because you swapped genders.
"Yooo, I heard Dave pulled an Allison"
"Pulling an Allison is crazyyy."