originally coined from a series of real life shootings in the postal service, it now usually means that someone is about to go nuts or off the deep end. the reason for going postal is usually trivial. also, means person on psychiatric meds that is off their pills.
after finding her computer's wallpaper had been changed again, Jane went postal on her fellow workers.
a liquor originally known by it's commercials and the slogan, Zomething different. taste is vaguely like flat 7 Up. a rather cheap drink, can be comsumed in masive amounts without the slightest buzz, until you stand up.
wow, she rounded the table with Zima bottles, and she's still fine. just dont ask her to get the door when the pizza arrives...