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.
by Foozi100 July 24, 2005
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A kick-ass band, similar to Death cab for cutiie, but with more of an upbeat. They have an album called "Give Up" If you wanna check 'em out, listen to "Such Great Heights", "Sleeping in", "We will become silhouettes", and "This Place is a Prison"
by KillaTM January 8, 2006
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Many countries currently offer banking with their local post offices.

This was already a thing in the United States from 1911 to 1967 when the US Post Office offered some basic banking and lending services.

Currently the US Post Office can only cash Treasury checks and issue money orders, but if Postal Banking returns, it would be a non profit banking option that provides a variety of banking and lending services.
If interest rates get capped at the proposed 15%, won’t banks just refuse to lend to new/high risk clients?

Probably, but Postal Banking is non profit and as such can offer low-cost low-dollar loans at rates that banks don’t want to.
by XDefineThingsX May 11, 2019
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The greatest computer game ever created. The basic premise is that you, Postal Dude, must complete a series of tasks while opting to be non-violent or exceptionally aggressive. During your various quests, you can do a variety of things, such as peeing on people, blowing the heads off of pedestrians, putting cats on the tips of shotguns and firing, shocking individuals (Causing them to piss themselves uncontrollably.), and generally create a state of emergency. The overly-hesitant police are powerless against you and your arsenal. In addition, the game endorses cruelty to animals, allowing you to blow dogs to pieces and mutilate cats. You even have the option of training an attack dog of your own. Players have the ability to commit suicide in crowded areas, as well. The possibilities are endless with Postal 2, making it a joy to play if you feel like having your soul ripped out of your body and pulled into the computer screen. It's a small price to pay when you have the option of playing such a wonderful masterpiece.

Postal 2 is a Davo's favorite game.
Luis: Are you playing Postal 2: Share the Pain again? Get a life!
Davo: Go to hell, Mexican! This is my favorite game!
by HugeBreasticle March 17, 2005
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a band that sounds alot like death cab for cutie because the singer happens to be Ben Gibbard.

the band also consists of producer Jimmy Tamborello of Dntel, and a few other bands (headset and figurine). the group formed after ben set vocals to a song on one of Dntel's albums.

the postal service succeeds in creating a unique sound mostly upbeat and poppy.
the postal service. you'll probably like them if you like cheery music. or something like that.
by sammy____ September 14, 2006
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When someone gets uncontrollably angry, often to a point of violence, usually in a workplace
After finding out Mark had another hour added to his 4 hour mail delivery shift, He brought a gun into work the next day and was reportedly going postal on fellow workers and customers
by NickBaggss November 29, 2015
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