To hit somone in the ass with the door of the microwave as they walk by. This is done by pushing the button that opens the microwave door timing it so they get a noticable tap on the ass.
Make sure to have some sort of heated food in there so as to protect yourself for any sort of trouble you may get into, apparently some people don't like getting a tap on the ass...
i didnt want to get fired for sexual misconduct so i pulled off an ass smack microwave on that hot secretary downstairs just to see that nice oooo face she makes.
by desktop peev June 12, 2006
Get the ass smack microwave mug.